OK. Just wanted to point that out since we diverted from your original question to disable a popup to install (assuming it was allowing user to navigate to parts of your app that you didn’t want)…to validating their location…to validating via EXIF…I just wanted to make sure the thread wasn’t going off on a tangent.
Location validation is tricky. Went through a similar conversation in a different thread. I honestly don’t have a great solution…especially when you don’t want a user to know they are being tracked one way or another. In any case, all of that can be spoofed. I’ll leave this post here to maybe give you some ideas or things to think about.