Basic Concentration app for iPhone and iPad

Concentration is played by one player.
Open two cards at a time, and if they are both the same number they are removed. If they are different numbers then the cards are returned to being face-down.
Remove all the cards as fast as you can and try to beat the high score!

Compatible with all iDevices: iPhone, iPod Touch, and, of course, iPad!
Compare your clear time with people around the world using Gamecenters score system!

Great for those who:
・ love games of patience such as Solitaire, Klondike, FreeCell, Spider Solitaire
・ are looking to kill some time between bus and train rides on the way to and from work or school
・ enjoy a good puzzle
・ are interested in other card games, such as Poker, Blackjack, and the Japanese Daifugo
・ enjoy other board games such as Reversi, Othello, Crosswords, Chess, and the Japanese Shogi and Go

No need to register your email address!
This app is a free download.