Important: This app will not work on the Jelly Bean OS. It is strongly recommended to download Countem Blackjack PRO 2 which will work on the Jelly Bean OS. It also has much more features than the original Pro version.This app has all of the Blackjack Card Counting Practice/Games of Countem Blackjack Lite and also a 6 player virtual game and practice. It simulates a real blackjack game at the speed you want. Practice with this application can payoff big. Good Luck!