well i get around 500 a month from the ios games i've written. and have the same exact games on android, and only get 60 bucks a month if that .. i don't have a ton of games, so iim happy with what i got, but looking for a quicker way to get games out, hence why i thought this engine would be good for that to get more out.
i tried also to put them on amazons store but in three months have only sold one game ... so so far
apple is way better for indy devs,
android might get you a months worth of cup of noodles,
amazon good luck even buying a cup of coffee once a year on that.
Cheers,
Deion G.