I've been playing for 4 years now. Could quite regularly redeem for gift cards early on. But I haven't been able to redeem for any sort of prize for over 2 years. Literally have enough for a big screen TV, but no prizes are ever available. When I reached a new prize level, somehow nothing was in stock. I'm 4 years in and regret my continued hope this app would do right by its users. I know they maintain revenue as they continue to rotate through many different advertisers. Disappointing.