To change the language on an app on Android, follow these steps:
1. Open the Settings app on your device.
2. Scroll down and select System.
3. Select Languages & input.
4. Select App Languages.
5. Choose the specific app you want to change the language for, click on it, and select the desired language.
Additionally, Android offers a Google Play Auto Archiving feature that allows you to free up storage space while preserving user data and settings.