TapSquares is a tile-based puzzle game. Tap a tile and it, along with up to four surrounding tiles, will switch colors. Keep switching tile colors until they're all the same, and you win. Each tile can be one of three possible colors. When a new game is begun, colors are randomly chosen for the tiles.

With the game options, players can choose how many tiles are shown, and thereby increase the difficulty. Optionally, a photo can be used instead of one of the tile colors. Just drag and drop the photo from the Finder desktop or other application window onto the main game window.