update apk using b4j

hi all, I want to know in which folder or files does my code change when I make changes to the coding? Because the final output is about 60 MB. I want to write code that downloads less than 60 MB when there is an update.

I have a B4A app that uses a static read-only Sqlite database. However, I would like my customers to be able to change the APK to include a different database that they can create themselves (with the same schema, just different data). They would then upload the new APK to the store, so the app...