Simply the best Sudoku app ever! Four games in one!

This is our free version for both iPhone and iPad with a large selection of puzzles to get you started with Sudoku X4. It can be upgraded to use our game engine that generates unlimited new puzzles at the touch of your finger. (Your iPhone or iPad is the computer making the puzzles!)

We have the classic Sudoku puzzles that you know and love. Then for a different twist on the game, try our Jigsaw Sudokus. Instead of the usual square boxes, these puzzles have odd-shaped groups which require a slightly different perspective as you work through them. We round out the selection with X variations on both of these puzzle types. In addition to the usual Sudoku rules, these X-Sudokus have a fourth restriction in the diagonals, which must also contain the digits 1-9. Not really harder, just interesting variations on the simpler Sudoku puzzle types.

Our Sudokus have 6 levels of difficulty, from absolute beginner to really, really hard. For newbies or aficionados who just want to relax, there are puzzles that require only simple techniques. At the other end of the scale, we have puzzles with Franken Fish, XY-Wing and other extreme patterns that will challenge even the most advanced puzzlers. (With no guessing required, of course.) These "really, really hard" puzzles rival the best handmade Sudokus.

We include an album storage system that allows you to save (and view) your partially solved and solved puzzles, as well as your choices for new puzzles. Our friendly user interface makes solving a pleasure, offering a great note implementation, various ink colors, a timer and complete undo/redo capabilities.

This is the ultimate Sudoku experience!

What’s New

Version 2.0.2

Bug fix for In-App Purchases.

Ratings and Reviews

4.8 out of 5
17 Ratings

17 Ratings

Mr. Don Quixote ,

Sudoku X4U

I love this sudoku app. It not only has great graphics and interface but it also has jigsaw and X sudokus. Difficulty levels are from very easy to very hard but they all have a unique solution. No guessing necessary. My only problem has been that when prompted to write a review it can’t access the App Store. By the way it comes with a small set of free samples but I could buy an unlimited number of sudokus for $2.99.
Mr. Don Quixote

memawx6 ,


Please put Sudoku X4 HD back in the App Store! It is colorful and challenging with many different levels for all who love doing JIGSAW SUDOKU. THANK YOU!

PS: I am certainly glad I still have mine on my iPad and will never delete it!

guehlstorf ,


Everyone in my family has this game and we love it! It's the best sudoku game available anywhere! It has a beautiful colorful user interface that is simple to use as well as regular, jigsaw and jigsaw X games available in many levels. I love the option of the red check mark. When the checkmark is selected, any mistakes you make will highlight in red, which is a great option for beginners. It also allows you to pencil in potential numbers. If you love sudoku, then you'll love this app. It's so much fun and we can't put it down for very long! And we long to play it when we can't. Now that's an awesome app!


Magnolia Heights Research and Development.
7.4 MB

Requires iOS 6.1 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© Magnolia Heights Research and Development


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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