Pattern Fun is like multiple apps in one, with several variations on the puzzle theme:
(1) Swap Puzzle (freely swapping any two pieces)
(2) Slide Puzzle (rearrange tiles by shifting them one at a time to the open space)
(3) Puzzle with Rotation (pieces may be both swapped and rotated)
(4) Stretch Puzzle (pieces have variable size but stretch when moved)
Each of the above game variations can be played in varying sizes - 3x3, 4x4 and 5x5.
In addition to all the built-in patterns, you can also import unlimited new patterns that you create with the Pattern Artist (or Pattern Artist Free) app.
Fastest times and fewest moves are tracked for each game variation, so you can challenge yourself, or you can turn off the clock for a more relaxed game.
Pattern Fun takes up very little space on your device, does not show advertisements, and best of all, it is completely free!