You can play against a friend taking turns on the same device, or you can play against one of the 4 levels of android players. You can even watch android players of individual levels play against each other.
You can configure each player to be either human or android, and you can set the starting piece to be X, O, or random.
So go ahead. Challenge a friend, or see if you can beat the various levels of android players. Be warned, however, that you are never going to beat the black android. A draw against the black android is the closest to victory you will ever get.