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Update Android app with extension file in Play Store

I have an existing application in PLAY STORE with 1.5 GB of data hosted and downloaded from an external server.
After installing the application, I ask the user to download the data and set the path in the application for him.

Now I want to integrate the extension file mechanism in this application.
My questions:

  • Is it possible to update the application using the file extension mechanism in which new users can download data through the extension file and existing users (after updating the apk from the Play Store) do not need to download the extension file again and can continue with the old data?

  • This is a paid application that also uses the GOOGLE license; therefore, if the above is not possible, and if he needs to download a new application with a different package name and publish the current application, then how to maintain the licensing of existing users (old application)?

Thanks at Advance.

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1 answer

Impossible:

  • Re 1: Google Play usually downloads the extension file directly with the APK.

  • Re 2: Applications can verify their license, not the license of other applications, using the Google License Verification Library.

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