Practice arithmetic by combining cards to reach the number 20. Play single player, versus, or quest modes. Track progress and compete against others. Adjust difficulty levels and customize settings. Share high scores and challenge friends.
View creator and collections, display personal , explore leaderboards for top and collectors, receive alerts when are stolen. Play card games with friends.
Play a card game with , bidding, and paired bidding modes. Adjust game length, sound effects, and vibration settings. Compete against AI with trump broken rules and require trump settings.