The suggested alternative isn't one, because it is for Mac OS X, rather than for iPhone OS. I have not yet tried this game, but I would suggest an alternative: Card Shark Lite. I am not suggesting it with the idea that it is in any way superior, but rather because it has a different selection of possible game types. Unfortunately, MacUpdate doesn't know about it, so I can't give you a direct link. FWIW, the game types I play most are Canfield and Freecell.