Don't put money in this, whatever you do. Best scam app in the app store. The game is wildly addictive and fun. Then one day they cut off your ability to win prizes, even if you paid for them. Then you contact customer service, and after a week of conversation they finally tell you they'll fix the problem. Then a week later they close the ticket, and tell you they fixed the problem. But secretly, they actually did nothing. Best scam app in the app store, very fun and addictive.