15 Puzzle 4+

Aside from saying the game performs as described, it is worth adding that it has a really good feel to it. Would give it five stars but for one big flaw--it resets the game any time you leave the app to do something else. Maybe others solve more quickly than me and don't have this problem. But it would seem quite easy to just let someone press New when they want a new game.

I mostly like this game, but there are two problems. One is that I think in order to get pleasing effects with custom photos I would have to crop them to fit the game before using them. It would be nice if this were part of the game.

The BIGGEST problem is that the i is not consistently responsive to touch.

For those that find the built-in picture puzzles too difficult, here is a hint. Work the puzzle with numbers, but before completely solving it, tap i and go change to one of the pictures. When you tap Done, it takes you back to your puzzle with the mostly solved picture.

I like being able to interact with the author at his forum.

This app would usually crash my phone, requiring a reset. When it did open, any picture loaded into it from the phone's camera roll was really blurry, and the pictures that come with the game (of which there are only four) are all intricate patterns - not at all the best images for use with this kind of game. The menu also always froze during game play, so that to start a new game or access the menu at all I had to go back to the home screen and then reopen the app. Long story short, I finally got fed up and deleted it. I just bought Slider instead ($1.99), it's the first app I've paid for and it seems really smooth and has a huge preset photo selection. Spring for that instead of this crappy thing.