Free and ad-free! Play noughts and crosses, also known as tic-tac-toe, against your smart phone or tablet just for fun! It's been programmed to play an imperfect game so it wont always win or draw! Features include: Score sheet that you can reset any time you want. Coloured themes. Sound on/off. Ad-free entertainment in a simple no-nonsense app. So why is the app called OVX?