If you are a fan of Tic Tac Toe, you should definitely try Tic Tac Toe Glow: 2 Player XO. This game is available for iPhone users and is developed by Nguyen Thi Thu Huyen. The best part about this game is that it is completely free.

Tic Tac Toe Glow: 2 Player XO has one of the smartest AI you can find in a Tic Tac Toe game. You can play with the AI for hours without getting bored. Moreover, you can adjust the difficulty level of the AI with 3 different levels: Easy, Medium, and Hard. This game is not just limited to playing with the AI, it is also designed for 2 players. So, you can play with your friends and family on your phone, saving paper and ink. The glow effect and cool animation of the game make it even more fun to play.