A free program for Android, by CDT Puzzle Studio.

Tic Tac Toe 2 Player XO is a 2-player version of the classic Tic Tac Toe game.

Tic Tac Toe 2 Player XO is a simple and enjoyable puzzle game for Android devices that can be played offline and with one or more players. In this version, you can choose between two-player mode and one-player mode.

In two-player mode, you can play with your friend or family on your phone, saving paper and ink. In one-player mode, the AI is easy, medium and hard, allowing you to play with a variety of different players.

You can also customize the AI’s behavior and difficulty.