diff --git a/app/src/main/java/com/sadellie/unitto/MainActivity.kt b/app/src/main/java/com/sadellie/unitto/MainActivity.kt
index 89c56f06..33855faf 100644
--- a/app/src/main/java/com/sadellie/unitto/MainActivity.kt
+++ b/app/src/main/java/com/sadellie/unitto/MainActivity.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto
 
 import android.os.Bundle
diff --git a/app/src/main/java/com/sadellie/unitto/UnittoApplication.kt b/app/src/main/java/com/sadellie/unitto/UnittoApplication.kt
index 467364a8..836c3ced 100644
--- a/app/src/main/java/com/sadellie/unitto/UnittoApplication.kt
+++ b/app/src/main/java/com/sadellie/unitto/UnittoApplication.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto
 
 import android.app.Application
diff --git a/app/src/main/java/com/sadellie/unitto/data/KeypadSymbols.kt b/app/src/main/java/com/sadellie/unitto/data/KeypadSymbols.kt
index fdf1f8f9..7fbb619f 100644
--- a/app/src/main/java/com/sadellie/unitto/data/KeypadSymbols.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/KeypadSymbols.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data
 
 const val KEY_1 = "1"
diff --git a/app/src/main/java/com/sadellie/unitto/data/Library.kt b/app/src/main/java/com/sadellie/unitto/data/Library.kt
index aeeaf671..0226c04a 100644
--- a/app/src/main/java/com/sadellie/unitto/data/Library.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/Library.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data
 
 
diff --git a/app/src/main/java/com/sadellie/unitto/data/NavRoutes.kt b/app/src/main/java/com/sadellie/unitto/data/NavRoutes.kt
index 96ae7535..65c1e595 100644
--- a/app/src/main/java/com/sadellie/unitto/data/NavRoutes.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/NavRoutes.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data
 
 const val MAIN_SCREEN = "MainScreen"
diff --git a/app/src/main/java/com/sadellie/unitto/data/preferences/AppTheme.kt b/app/src/main/java/com/sadellie/unitto/data/preferences/AppTheme.kt
index d878e2ae..d5e6db66 100644
--- a/app/src/main/java/com/sadellie/unitto/data/preferences/AppTheme.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/preferences/AppTheme.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.preferences
 
 import android.os.Build
diff --git a/app/src/main/java/com/sadellie/unitto/data/preferences/DataStoreModule.kt b/app/src/main/java/com/sadellie/unitto/data/preferences/DataStoreModule.kt
index 3ae74e68..8c0f6467 100644
--- a/app/src/main/java/com/sadellie/unitto/data/preferences/DataStoreModule.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/preferences/DataStoreModule.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.preferences
 
 import android.content.Context
diff --git a/app/src/main/java/com/sadellie/unitto/data/preferences/OutputFormat.kt b/app/src/main/java/com/sadellie/unitto/data/preferences/OutputFormat.kt
index 053d39cc..9ab396a1 100644
--- a/app/src/main/java/com/sadellie/unitto/data/preferences/OutputFormat.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/preferences/OutputFormat.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.preferences
 
 import com.sadellie.unitto.R
diff --git a/app/src/main/java/com/sadellie/unitto/data/preferences/Precision.kt b/app/src/main/java/com/sadellie/unitto/data/preferences/Precision.kt
index ef67a5ba..ac9749c0 100644
--- a/app/src/main/java/com/sadellie/unitto/data/preferences/Precision.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/preferences/Precision.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.preferences
 
 import com.sadellie.unitto.R
diff --git a/app/src/main/java/com/sadellie/unitto/data/preferences/Separator.kt b/app/src/main/java/com/sadellie/unitto/data/preferences/Separator.kt
index 242a6ff7..bf582481 100644
--- a/app/src/main/java/com/sadellie/unitto/data/preferences/Separator.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/preferences/Separator.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.preferences
 
 import com.sadellie.unitto.R
diff --git a/app/src/main/java/com/sadellie/unitto/data/preferences/UserPreferences.kt b/app/src/main/java/com/sadellie/unitto/data/preferences/UserPreferences.kt
index 6e1a5af8..d9a5e670 100644
--- a/app/src/main/java/com/sadellie/unitto/data/preferences/UserPreferences.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/preferences/UserPreferences.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.preferences
 
 import androidx.datastore.core.DataStore
diff --git a/app/src/main/java/com/sadellie/unitto/data/units/AbstractUnit.kt b/app/src/main/java/com/sadellie/unitto/data/units/AbstractUnit.kt
index 8f1048ec..8f058ce6 100644
--- a/app/src/main/java/com/sadellie/unitto/data/units/AbstractUnit.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/units/AbstractUnit.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.units
 
 import androidx.annotation.StringRes
diff --git a/app/src/main/java/com/sadellie/unitto/data/units/AllUnits.kt b/app/src/main/java/com/sadellie/unitto/data/units/AllUnits.kt
index 3d8ac2ff..5aa8c0fa 100644
--- a/app/src/main/java/com/sadellie/unitto/data/units/AllUnits.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/units/AllUnits.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.units
 
 import android.content.Context
diff --git a/app/src/main/java/com/sadellie/unitto/data/units/MyUnit.kt b/app/src/main/java/com/sadellie/unitto/data/units/MyUnit.kt
index 2db9bc9f..05de8fb8 100644
--- a/app/src/main/java/com/sadellie/unitto/data/units/MyUnit.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/units/MyUnit.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.units
 
 import androidx.annotation.StringRes
diff --git a/app/src/main/java/com/sadellie/unitto/data/units/MyUnitIDS.kt b/app/src/main/java/com/sadellie/unitto/data/units/MyUnitIDS.kt
index 8cf0c6e5..d432a5ba 100644
--- a/app/src/main/java/com/sadellie/unitto/data/units/MyUnitIDS.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/units/MyUnitIDS.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.units
 
 /**
diff --git a/app/src/main/java/com/sadellie/unitto/data/units/UnitGroup.kt b/app/src/main/java/com/sadellie/unitto/data/units/UnitGroup.kt
index a1b7acfe..5833098c 100644
--- a/app/src/main/java/com/sadellie/unitto/data/units/UnitGroup.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/units/UnitGroup.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.units
 
 import androidx.annotation.StringRes
diff --git a/app/src/main/java/com/sadellie/unitto/data/units/database/BasedUnitDatabaseModule.kt b/app/src/main/java/com/sadellie/unitto/data/units/database/BasedUnitDatabaseModule.kt
index a154bec5..51773390 100644
--- a/app/src/main/java/com/sadellie/unitto/data/units/database/BasedUnitDatabaseModule.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/units/database/BasedUnitDatabaseModule.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.units.database
 
 import android.content.Context
diff --git a/app/src/main/java/com/sadellie/unitto/data/units/database/MyBasedUnit.kt b/app/src/main/java/com/sadellie/unitto/data/units/database/MyBasedUnit.kt
index 86e72e07..f94b345f 100644
--- a/app/src/main/java/com/sadellie/unitto/data/units/database/MyBasedUnit.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/units/database/MyBasedUnit.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.units.database
 
 import androidx.room.ColumnInfo
diff --git a/app/src/main/java/com/sadellie/unitto/data/units/database/MyBasedUnitDao.kt b/app/src/main/java/com/sadellie/unitto/data/units/database/MyBasedUnitDao.kt
index e5136175..dc44bfff 100644
--- a/app/src/main/java/com/sadellie/unitto/data/units/database/MyBasedUnitDao.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/units/database/MyBasedUnitDao.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.units.database
 
 import androidx.room.Dao
diff --git a/app/src/main/java/com/sadellie/unitto/data/units/database/MyBasedUnitDatabase.kt b/app/src/main/java/com/sadellie/unitto/data/units/database/MyBasedUnitDatabase.kt
index b826af25..42320213 100644
--- a/app/src/main/java/com/sadellie/unitto/data/units/database/MyBasedUnitDatabase.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/units/database/MyBasedUnitDatabase.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.units.database
 
 import androidx.room.Database
diff --git a/app/src/main/java/com/sadellie/unitto/data/units/database/MyBasedUnitsRepository.kt b/app/src/main/java/com/sadellie/unitto/data/units/database/MyBasedUnitsRepository.kt
index 984a8ed8..a1e553a5 100644
--- a/app/src/main/java/com/sadellie/unitto/data/units/database/MyBasedUnitsRepository.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/units/database/MyBasedUnitsRepository.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.units.database
 
 import javax.inject.Inject
diff --git a/app/src/main/java/com/sadellie/unitto/data/units/remote/CurrencyApiService.kt b/app/src/main/java/com/sadellie/unitto/data/units/remote/CurrencyApiService.kt
index 9cb8dc9b..642bc5db 100644
--- a/app/src/main/java/com/sadellie/unitto/data/units/remote/CurrencyApiService.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/units/remote/CurrencyApiService.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.units.remote
 
 import com.squareup.moshi.Moshi
diff --git a/app/src/main/java/com/sadellie/unitto/data/units/remote/CurrencyUnitResponse.kt b/app/src/main/java/com/sadellie/unitto/data/units/remote/CurrencyUnitResponse.kt
index 69a77dc4..e56c3dcd 100644
--- a/app/src/main/java/com/sadellie/unitto/data/units/remote/CurrencyUnitResponse.kt
+++ b/app/src/main/java/com/sadellie/unitto/data/units/remote/CurrencyUnitResponse.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.units.remote
 
 import com.squareup.moshi.FromJson
diff --git a/app/src/main/java/com/sadellie/unitto/screens/MainScreenUIState.kt b/app/src/main/java/com/sadellie/unitto/screens/MainScreenUIState.kt
index 3fd7658e..d3cc2a98 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/MainScreenUIState.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/MainScreenUIState.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens
 
 import com.sadellie.unitto.data.KEY_0
diff --git a/app/src/main/java/com/sadellie/unitto/screens/MainViewModel.kt b/app/src/main/java/com/sadellie/unitto/screens/MainViewModel.kt
index 15977d77..f18eca0d 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/MainViewModel.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/MainViewModel.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens
 
 import android.app.Application
diff --git a/app/src/main/java/com/sadellie/unitto/screens/Utils.kt b/app/src/main/java/com/sadellie/unitto/screens/Utils.kt
index f1646d08..79390496 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/Utils.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/Utils.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens
 
 import android.content.Context
diff --git a/app/src/main/java/com/sadellie/unitto/screens/about/AboutScreen.kt b/app/src/main/java/com/sadellie/unitto/screens/about/AboutScreen.kt
index 65c3ea21..f115edc7 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/about/AboutScreen.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/about/AboutScreen.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens.about
 
 import androidx.compose.animation.rememberSplineBasedDecay
diff --git a/app/src/main/java/com/sadellie/unitto/screens/main/MainScreen.kt b/app/src/main/java/com/sadellie/unitto/screens/main/MainScreen.kt
index 19136054..ce940ca1 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/main/MainScreen.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/main/MainScreen.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens.main
 
 
diff --git a/app/src/main/java/com/sadellie/unitto/screens/main/components/Keyboard.kt b/app/src/main/java/com/sadellie/unitto/screens/main/components/Keyboard.kt
index 8735dfdc..7b877b3d 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/main/components/Keyboard.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/main/components/Keyboard.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens.main.components
 
 import androidx.compose.foundation.layout.Column
diff --git a/app/src/main/java/com/sadellie/unitto/screens/main/components/KeyboardButton.kt b/app/src/main/java/com/sadellie/unitto/screens/main/components/KeyboardButton.kt
index 7a8c61aa..8cce7079 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/main/components/KeyboardButton.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/main/components/KeyboardButton.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens.main.components
 
 import androidx.compose.foundation.layout.PaddingValues
diff --git a/app/src/main/java/com/sadellie/unitto/screens/main/components/MyTextField.kt b/app/src/main/java/com/sadellie/unitto/screens/main/components/MyTextField.kt
index 9b0cf716..a4f74257 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/main/components/MyTextField.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/main/components/MyTextField.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens.main.components
 
 import android.widget.Toast
diff --git a/app/src/main/java/com/sadellie/unitto/screens/main/components/TopScreen.kt b/app/src/main/java/com/sadellie/unitto/screens/main/components/TopScreen.kt
index 58a4cdc0..be44626b 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/main/components/TopScreen.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/main/components/TopScreen.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens.main.components
 
 import androidx.compose.foundation.layout.Arrangement
diff --git a/app/src/main/java/com/sadellie/unitto/screens/main/components/UnitSelectionButton.kt b/app/src/main/java/com/sadellie/unitto/screens/main/components/UnitSelectionButton.kt
index 5d566854..3f8dfbf4 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/main/components/UnitSelectionButton.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/main/components/UnitSelectionButton.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens.main.components
 
 import androidx.compose.animation.AnimatedContent
diff --git a/app/src/main/java/com/sadellie/unitto/screens/second/SecondScreen.kt b/app/src/main/java/com/sadellie/unitto/screens/second/SecondScreen.kt
index ce672022..fe0a4c8c 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/second/SecondScreen.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/second/SecondScreen.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens.second
 
 import androidx.compose.foundation.layout.Column
diff --git a/app/src/main/java/com/sadellie/unitto/screens/second/SecondScreenUIState.kt b/app/src/main/java/com/sadellie/unitto/screens/second/SecondScreenUIState.kt
index b6aa6adf..e006f157 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/second/SecondScreenUIState.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/second/SecondScreenUIState.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens.second
 
 import com.sadellie.unitto.data.units.AbstractUnit
diff --git a/app/src/main/java/com/sadellie/unitto/screens/second/SecondViewModel.kt b/app/src/main/java/com/sadellie/unitto/screens/second/SecondViewModel.kt
index 11249cc5..07ca8058 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/second/SecondViewModel.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/second/SecondViewModel.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens.second
 
 import androidx.compose.runtime.getValue
diff --git a/app/src/main/java/com/sadellie/unitto/screens/second/components/ChipsRow.kt b/app/src/main/java/com/sadellie/unitto/screens/second/components/ChipsRow.kt
index 5dcac2bf..b7c5ec6e 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/second/components/ChipsRow.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/second/components/ChipsRow.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens.second.components
 
 import androidx.compose.animation.AnimatedVisibility
diff --git a/app/src/main/java/com/sadellie/unitto/screens/second/components/Header.kt b/app/src/main/java/com/sadellie/unitto/screens/second/components/Header.kt
index 41d82bc2..b5fbc6c3 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/second/components/Header.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/second/components/Header.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens.second.components
 
 import androidx.compose.foundation.background
diff --git a/app/src/main/java/com/sadellie/unitto/screens/second/components/SearchBar.kt b/app/src/main/java/com/sadellie/unitto/screens/second/components/SearchBar.kt
index 969830fd..685dd5cd 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/second/components/SearchBar.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/second/components/SearchBar.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens.second.components
 
 import androidx.activity.compose.BackHandler
diff --git a/app/src/main/java/com/sadellie/unitto/screens/second/components/SearchPlaceholder.kt b/app/src/main/java/com/sadellie/unitto/screens/second/components/SearchPlaceholder.kt
index 76c9aaff..83a78b2d 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/second/components/SearchPlaceholder.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/second/components/SearchPlaceholder.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens.second.components
 
 import androidx.compose.foundation.layout.Arrangement
diff --git a/app/src/main/java/com/sadellie/unitto/screens/second/components/UnitListItem.kt b/app/src/main/java/com/sadellie/unitto/screens/second/components/UnitListItem.kt
index 4165d0b0..c4845dad 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/second/components/UnitListItem.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/second/components/UnitListItem.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens.second.components
 
 import androidx.compose.animation.AnimatedContent
diff --git a/app/src/main/java/com/sadellie/unitto/screens/setttings/AlertDialogWithList.kt b/app/src/main/java/com/sadellie/unitto/screens/setttings/AlertDialogWithList.kt
index b02e478a..0b736596 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/setttings/AlertDialogWithList.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/setttings/AlertDialogWithList.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens.setttings
 
 import androidx.compose.foundation.clickable
diff --git a/app/src/main/java/com/sadellie/unitto/screens/setttings/SettingsListItem.kt b/app/src/main/java/com/sadellie/unitto/screens/setttings/SettingsListItem.kt
index 80f3e383..6211bcf9 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/setttings/SettingsListItem.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/setttings/SettingsListItem.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens.setttings
 
 import androidx.compose.foundation.clickable
diff --git a/app/src/main/java/com/sadellie/unitto/screens/setttings/SettingsScreen.kt b/app/src/main/java/com/sadellie/unitto/screens/setttings/SettingsScreen.kt
index 74ce120f..b7585504 100644
--- a/app/src/main/java/com/sadellie/unitto/screens/setttings/SettingsScreen.kt
+++ b/app/src/main/java/com/sadellie/unitto/screens/setttings/SettingsScreen.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens.setttings
 
 import android.os.Build
diff --git a/app/src/main/java/com/sadellie/unitto/ui/theme/Color.kt b/app/src/main/java/com/sadellie/unitto/ui/theme/Color.kt
index 20c5b27b..83956851 100644
--- a/app/src/main/java/com/sadellie/unitto/ui/theme/Color.kt
+++ b/app/src/main/java/com/sadellie/unitto/ui/theme/Color.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.ui.theme
 
 import androidx.compose.ui.graphics.Color
diff --git a/app/src/main/java/com/sadellie/unitto/ui/theme/ColorSchemeUtils.kt b/app/src/main/java/com/sadellie/unitto/ui/theme/ColorSchemeUtils.kt
index 95d35db7..f72918d3 100644
--- a/app/src/main/java/com/sadellie/unitto/ui/theme/ColorSchemeUtils.kt
+++ b/app/src/main/java/com/sadellie/unitto/ui/theme/ColorSchemeUtils.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.ui.theme
 
 import android.app.WallpaperManager
diff --git a/app/src/main/java/com/sadellie/unitto/ui/theme/ColorSchemes.kt b/app/src/main/java/com/sadellie/unitto/ui/theme/ColorSchemes.kt
index 50eb4f34..a5e4ad87 100644
--- a/app/src/main/java/com/sadellie/unitto/ui/theme/ColorSchemes.kt
+++ b/app/src/main/java/com/sadellie/unitto/ui/theme/ColorSchemes.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.ui.theme
 
 import androidx.compose.material3.darkColorScheme
diff --git a/app/src/main/java/com/sadellie/unitto/ui/theme/Theme.kt b/app/src/main/java/com/sadellie/unitto/ui/theme/Theme.kt
index c1eefd7b..1214a5fd 100644
--- a/app/src/main/java/com/sadellie/unitto/ui/theme/Theme.kt
+++ b/app/src/main/java/com/sadellie/unitto/ui/theme/Theme.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.ui.theme
 
 import android.os.Build
diff --git a/app/src/main/java/com/sadellie/unitto/ui/theme/Type.kt b/app/src/main/java/com/sadellie/unitto/ui/theme/Type.kt
index 91839050..267a0b73 100644
--- a/app/src/main/java/com/sadellie/unitto/ui/theme/Type.kt
+++ b/app/src/main/java/com/sadellie/unitto/ui/theme/Type.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.ui.theme
 
 import androidx.compose.material3.Typography
diff --git a/app/src/test/java/com/sadellie/unitto/data/units/AllUnitsRepositoryTest.kt b/app/src/test/java/com/sadellie/unitto/data/units/AllUnitsRepositoryTest.kt
index 8847c7ac..85977c6e 100644
--- a/app/src/test/java/com/sadellie/unitto/data/units/AllUnitsRepositoryTest.kt
+++ b/app/src/test/java/com/sadellie/unitto/data/units/AllUnitsRepositoryTest.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.units
 
 import org.junit.Assert.assertEquals
diff --git a/app/src/test/java/com/sadellie/unitto/data/units/AllUnitsTest.kt b/app/src/test/java/com/sadellie/unitto/data/units/AllUnitsTest.kt
index ea945e5c..4f7659b8 100644
--- a/app/src/test/java/com/sadellie/unitto/data/units/AllUnitsTest.kt
+++ b/app/src/test/java/com/sadellie/unitto/data/units/AllUnitsTest.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.data.units
 
 
diff --git a/app/src/test/java/com/sadellie/unitto/screens/FormatterTest.kt b/app/src/test/java/com/sadellie/unitto/screens/FormatterTest.kt
index 20d6c558..ce8187dc 100644
--- a/app/src/test/java/com/sadellie/unitto/screens/FormatterTest.kt
+++ b/app/src/test/java/com/sadellie/unitto/screens/FormatterTest.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens
 
 import com.sadellie.unitto.data.preferences.Separator
diff --git a/app/src/test/java/com/sadellie/unitto/screens/LevenshteinFilterAndSortTest.kt b/app/src/test/java/com/sadellie/unitto/screens/LevenshteinFilterAndSortTest.kt
index 3daa97b0..9d81c624 100644
--- a/app/src/test/java/com/sadellie/unitto/screens/LevenshteinFilterAndSortTest.kt
+++ b/app/src/test/java/com/sadellie/unitto/screens/LevenshteinFilterAndSortTest.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens
 
 import com.sadellie.unitto.data.units.AbstractUnit
diff --git a/app/src/test/java/com/sadellie/unitto/screens/LevenshteinTest.kt b/app/src/test/java/com/sadellie/unitto/screens/LevenshteinTest.kt
index 29da9051..77cb258d 100644
--- a/app/src/test/java/com/sadellie/unitto/screens/LevenshteinTest.kt
+++ b/app/src/test/java/com/sadellie/unitto/screens/LevenshteinTest.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens
 
 import org.junit.Assert.assertEquals
diff --git a/app/src/test/java/com/sadellie/unitto/screens/MinimumRequiredScaleTest.kt b/app/src/test/java/com/sadellie/unitto/screens/MinimumRequiredScaleTest.kt
index e09d41a7..4facd9b7 100644
--- a/app/src/test/java/com/sadellie/unitto/screens/MinimumRequiredScaleTest.kt
+++ b/app/src/test/java/com/sadellie/unitto/screens/MinimumRequiredScaleTest.kt
@@ -1,3 +1,21 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2022-2022 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.sadellie.unitto.screens
 
 import org.junit.Assert.assertEquals