Misrepresentation of winning money in app game

I discovered an app game that advertises winning real money and playing for real money. A player would deposit real money from their account to play their game thinking they are winning back real money but in the end the money that was supposed to get paid out was just and "ranking" and only the 1st, 2nd and 3rd players win a cash prize. Each game is advertised "win prize $1" so you pay $.60 at a chance to win $1. But, the $1 you win back is fake... Just a "ranking" system. Please let me know if I have a case here. I feel cheated and mislead. I didn't spend a lot of money on this game but I can imagine someone who might.