Quatre Duo
A little tabletop rivalry.
Fold your iPhone Duo, take a side, and connect four.
Two sides. One board.
Fold your iPhone Duo, take a side and connect four. Coral plays on the upright inner display and Amber on the outer display. Both players see the same board from their own side.
Slide to aim, release to drop, and play another round. Your score and unfinished game stay on your device.
Made for tabletop play
Quatre Duo requires iPhone Duo and iOS 27.1 or later. Camera permission is required for Apple’s simultaneous-display feature. The app does not record or share camera images.