The goal in Diamond Islands is to roll a rectangle into a square hole by rotating it. That’s it. What makes this particular app different than others of its type is its charming story. A Native American peasant is in love with the Chieftain’s daughter. Daddy finds out and bars them from seeing each other ever again. The gods object and make stars fall from the sky, putting them in danger. The young peasant embarks on a journey to fix the stars (and hopefully win daddy’s approval).