The Othello Crush privacy policy explains what information is used to run the game.
An account is required to play, and relevant data is stored encrypted with SSL used for connections. Personal information is used to show a nickname in the game and high-score list. Email is used for login identification and password reset.
The app does not use cookies. The original policy also listed third-party libraries including BRYXBanner, SwiftyJSON, SwiftySound, IAPHelper and EasyTip.