0 stars, the way it works is, when you are about to get your "reward" it bombards you with ads and makes it harder too get a reward, no tonly that but of obviously the rewards are fake. I don't think this game should even exist. Never download it ever even if you aren't doing it for the rewards because of all the ads, which you can't even use airplane mode too disable them. Thos game along with the developers should go to hell.