A simple sample Android application. Should play Tic Tac Toe perfectly and always reach the draw. Tic Tac Toe gives a draw if no player makes a mistake. The CPU moves are randomized if different moves are equally strong. So you should see several different games.
There is no official Android Play Store release of this sample application. You can download the installable release package file here (https://github.com/evolutionsoftswiss/android/tree/master/TicTacToeApp/release).
To install such unofficial packages you need to turn on Settings -> Screen lock & security -> Unknown sources. You may have to confirm also the installation after executiong it from your download folder. After the installation you should turn off "Unknown sources" again.