Three Seven app for iPhone and iPad

Three Seven is a tile-matching puzzle inspired by the classic Columns, but with a twist: rather than matching blocks of equal colours, your objective is to align 3 numbered blocks whose sum equals 7. If you like old-school games and youre itching for some math challenge, give Three Seven a try!

The gameplay is largely similar to the classic game: columns of three numbered blocks (from 0 to 7) fall from the top of the playing area, one at a time, until they land on the floor or on the top of previously fallen columns. Once it lands, if there are three blocks connected in a straight line and their sum equals 7, they are removed from the game, granting you points. Your objective is to accumulate as many points as you can until the blocks fill beyond the top of the screen. Sounds hard? Its actually easier than you might think!

If you prefer the original match-3 gameplay, you can also relive the classic using the "Classic Mode": no need to read and sum numbers, just align the blocks by color, and youre good to go!