A classic game from Mexico, La Loteria. It's like Bingo, but with iconic cards.
This app is multi-player. Have others around you on the same Wi-Fi as the players to connects to the caller. As the caller says the card out-loud, it sends a bean to the player's iDevice. The player taps on the card to see the bean appear. No cheating allowed here, if the caller did not call it, the bean will not appear.
First player to get four in a row, one in each corner, or your own family variant, wins but not before being the first to yelling out loud "¡Loteria!
Once the game is done, the player has the option to keep the current play board or get another one. Each one is completely random, so no two boards will ever be alike. When the caller starts a new game, s/he erases all the beans on the players' board.