Nothing. It's an APK file, which *is* an app. You download it, then install it directly, and it works like you got it from the Play store.
I found some directions here or you can just websearch for "android install APK"
For me, it's usually a storage issue so I have to free up space and keep retrying and hope it works. It's taken me many tries to update before.
Did you ever get it?
I've had the same problem a bunch of times downloading but eventually so far I've gotten em all to work just by deleting a shit ton of stuff from my storage
That error is because your phone isn't compatible with the game.
I just put the phone in developer mode and it downloaded (after it showed the error like twice)
