Top 2048 app for iPhone and iPad

"2048" is a puzzle game.
The game starts, the two numbers 4x4 board, moving them using the direction keys.
Each move, the board will add a number, the same number will be merged together by adding the same number in the sum will automatically close or when moving, allowing the player time to appreciate the larger figure has the passion and excitement, you do is spell out 2048.
Everyone wants to see their growth in the upper right corner of the simple game of "SCORE" score, so that players always grasp the fruits of their own efforts. And on the left "BEST" scores, then let you after every game can see their own growth, but also can stimulate your desire to constantly challenge yourself. 2048 not so good spell out specifically how many times you want it, ah, do the math, take a challenge!