The best way to play this game is if you purchase coins. I'm never comfortable with adding a credit card to anything unless I'm buying something tangible. Also it's a Facebook spinoff...without Facebook you wont be able to maintain coins either. I don't subscribe to social media at all. Coins are scarce if you do neither of those two things. So after awhile you'll never reach the bonuses. This game is fine if you don't have expectations of winning without purchasing coins.