SlideFifteen

Slide Fifteen is the classic sliding number puzzle, rebuilt for iPhone and iPad with a clean, native design.

Slide the numbered tiles until they run in order from one to fifteen and the empty square returns to the bottom-right corner. Tap any tile in line with the gap to slide a whole row at once, or swipe to nudge a single tile. Choose from four board sizes: an easy 3x3, the traditional 4x4, or a demanding 5x5 and 6x6.

A new Daily Challenge appears every day, identical for every player worldwide, and finishing it builds a streak you can keep alive. Turn any photo from your library into a picture puzzle, with a peek button and optional number badges when you get stuck. Fourteen achievements and detailed statistics track your best times, fewest moves, and average solve time for every board size.

Five tile themes, full light and dark mode support, VoiceOver, and Dynamic Type are all included.

Slide Fifteen is completely free with no ads, no in-app purchases, and no accounts. It works entirely offline and never collects or transmits any data.