Not allowing android app to be converted into .apk from google play

Question

With astro file manager and other applications, applications uploaded on google play can be backed up as .apk file. However some apps can't be backed up using these applications. I want to know that is there any way in android source code that would protect google play applcations not backed up as .apk file?

Answer 1

applications uploaded on google play can be backed up as .apk file.

Applications that are marked as public applications by the publisher can be backed up to the SD card.

However some apps can't be backed up using these applications.

Android does not allow applications that are marked as private to be backed up. This includes most paid applications. Private applications can be re-installed from the market if necessary.

is there any way in android source code that would protect google play applcations not backed up as .apk file?

you can define you application marked as private to be backed up while publishing your app with this LINK. and after user can not be backed up your application to the SD card