You can play with mocha (device) or with your friends on iMessage.
Two players take turns drawing lines between dots on the game board. When a player draws a line that completes a box, the player "owns" that box. Whoever owns more boxes when the game board is full is the winner. You can choose board size (3x3, 4x4, 5x5, 6x6, 7x7, 8x8, 9x9, 10x10).Visit Dot Link
Download on the App Store