Tic Tac Toe Noughts & Crosses

Tic-tac-toe (also known as Noughts and crosses or Xs and Os) app for you against your smart phone, X and O, who take turns marking the spaces in a 3×3 grid. The player who succeeds in placing three of their marks in a horizontal, vertical, or diagonal row wins the game.
The beauty of this app is no paper is wasted and many games can be played in a short time.