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Why is Google allowed to remove purchases from our Play Store accounts without telling us?
(www.androidpolice.com)
This is a most excellent place for technology news and articles.
You don't need root to extract apks.
True, but as I recall it was more than just the APK that I needed to backup/restore to get it to work.
It was so many years ago, so I really don't remember the details, but the point was without a backup, I'd have lost access to the app I paid for.