title: Does Android automatically delete obb expansion files after install?
body: <p>I have an obb file which is a zip file, which I unpack after downloading it in the obb folder. Then I copy the unpacked obb files to Internal Storage.</p>
  
  <p>I just released an app to Internal testing. I installed the app, but I was hoping that the obb files would be automatically deleted, but it seems they are still hanging in there, and when I check the Storage size in Settings, the size of the apk file includes the data in the obb folder. I don't want this, because my app is taking less storage then it's actually showing in Settings / Storage.</p>
  
  <p>Is there an Android process that automatic removes the obb files later on, or do I need to delete them myself when I don't need them anymore, right after copying them to internal storage?</p>