I'm not

25-in-1 Casino_CUSTOMER_SERVICE_+1.8.5.5.-8.6.7.-.O1.7...

into gambling all that much, but this app seems to be a very good simulation. Great time killer, free chips (although I can't seem to get the 25k chip video to work), and a large variety of games. It does have ads, but they are unobtrusive and don't stop gameplay as with some other apps.