Mar 14, 2011 - Athena's Tiles, an edge-match puzzle from Sphere & Cylinder LLC, is now on the App Store. It is open to players with color vision or manual dexterity issues, and those who cannot read or use numbers. The app can play itself showing the moves to a solution. Puzzles are solved at the player's pace. There is no competition with other players and no time pressure. The 26 levels each have an unlimited number of games. Difficulty goes from preschool to adult.