You can. I've done that with Audible in order to make cash purchases. With that said, the app has taken a hit since it's clearly optimized for its primary insta

You can. I've done that with Audible in order to make cash purchases. With that said, the app has taken a hit since it's clearly optimized for its primary installation target. I can technically purchase through the app, but prices are buried and sections like "deal of the day" have been removed entirely. Strangely, even though I installed the app through the Amazon App Store, the Google Play Store will overwrite it when an update is available. And then I'm back to a version that can't make cash purchases. It took me a little while to figure out what was going on there. The solution was to disable auto-updates for the Audible app from my Google Play Store account. But, why is Google replacing an application installed by a different source in the first place?