FutoshKube - FutoshKube is the one Futoshiki puzzle you will want to own so you can play it again and again! 

Here's a fun new puzzle for all us puzzle-heads. Like Sudoku, each number can only appear in each row or column once, but the challenge to solving a FutoshKube puzzle is honoring the greater than (>) and less than (<) signs that appear between the squares on the grid! 

FutoshKube offers you four levels of difficulty on each of the 3x3, 4x4, 5x5 and 6x6 grids. Try out the easy level and progress through the medium, hard and very hard levels. Use the built-in timer to test yourself against the clock! 

Our unique FutoshKube brings you the ultimate puzzle in a cube format - allowing you to work on up to 6 puzzles at once. You just have to swipe-left, right, up or down to move from puzzle to the next. Get stuck on one side, go ahead and start the next puzzle on a different side of the cube and return to the previous one whenever you are ready. 

FutoshKube includes some key features that you will find invaluable as you work through your solutions - the ability to make notations in squares and the ability to save the puzzle so you can make progress on the those very hard puzzles and return to complete them at a later time. 

Source: http://itunes.apple.com/mu/app/futoshkube/id433987041?mt=8