warriorpoet
500+ Head-Fier
Fiio already bypass the Android audio stack in one or more of their other players IIRC (x7 ii, perhaps?). That's preferable to a 3rd party option, in my view. Not sure if that's a hardware limitation or software, or if Fiio is already doing it but hasn't listed the functionality. This seems the place to talk about those sorts of thingsIt would seem much easier for the developers if UAPP to make it available outside of Google Play than for FiiO to get Google to allow Google Play to run on the M11. Maybe you should be pestering the UAPP developers about this too?
UAPP uses Google Play to verify purchase. Not much that can be done on their end. Not Fiio's fault Google isn't certifying new Android 7 devices.