With unlimited play at seventeen difficulty levels, novices and experienced players alike will appreciate :) Sudoku +. Our tutorial, extensive feature set, and advanced hint system offer something for every player. The more you play, the more you will enjoy it!

Our multi-stage hint system starts with a gentle reminder to get you back on track, and works up to an illustration of the exact technique to use and how it applies to the current board. Our hints ease those frustrating moments and teach you how to be a better player.

Features include:

- Puzzle generator for unlimited play
- Scan puzzles from books/newspaper using camera
- 17 difficulty levels, something for everyone
- Tutorial teaches you new techniques
- Large, high contrast digits are easier to read
- Enter games from the newspaper
- Solver helps you with games from the newspaper
- Advanced techniques at the higher levels, including X-Wings, sashimi fish, and XY-Chains
- User interface optimized for fewer touches
- Choice of six color schemes
- Never covers up the board while you are playing
- Infinite undo/redo
- Undo to the last solvable position
- Board solvable indicator
- Automatic or manual pencil marks
- Save your game while you try alternatives
- Automatically saves your game when you get a phone call, switch applications, or lock the phone
- Highlighting helps you discover patterns
- Game clock; compares your time to other players
- Avoids graphic frills that distract from play
- Choice of digit styles, including Kanji and Hanzi

All games are true Sudoku, with symmetry and a single solution that can be discovered by logic alone. If you doubt that a puzzle can be solved by logic, simply have the hint system explain it to you step by step.

If you enjoy Sudoku, this is the app for you!

What's New

Version 5.2.6

Minor bug fixes.
Updated in 5.2.5:
Improved compatibility with newer versions of iOS.
Added support for split view multitasking (when available).
Fixed on/off sliders in Settings sometimes getting "stuck".
Forcing the screen orientation is no longer available. Please use the system supplied orientation lock.
Now requires iOS 6 or newer.

Ratings and Reviews

4.9 out of 5
1.5K Ratings
1.5K Ratings

Free version is so good I had to upgrade

I've been playing this for a while. I have another free version on my phone, and it has two big drawbacks: 1) lately it is inundated with ads, and 2) if I'm stuck, I can reveal the answer but I don't learn anything.

This version is great because if I'm stuck, there are tutorials, which get more and more in-depth. For a while I didn't understand about the "fatal combination" or whatever it's called -- what it is, there are some number patterns that would allow for two correct solutions. The pure Sudoku always has a solution and only one solution. So in addition to not having two of the same number in a row, column or rectangle, I also can't have a situation where there's more than one possibility. I'm learning. (Slowly). The tutorials proceed slowly, so if I get it sooner, I can return to the game sooner.


Best Sudoku game!

I have downloaded and played with most Sudoku games out there. This is by far the best one. It's great for every level of Suduko player and has as many helpful tools as you want, or don't want to use.

Features that stand out for me....

Very easy to concentrate on one number and fill in many boxes with a single tap on each box.

Easy to switch from a pencil mark to a solid number because it has 2 number pads.

Many different Levels of play. At first I didn't understand why the developer put so many different levels in. I now really appreciate the different levels and can pick one depending on how relaxing, or taxing I want the game to be.

Great import features. I enjoy importing the Sudoku puzzle from our daily paper and the one in USA Today for a different variety.

The undo until solvable tools is great if you mess up and want to go back to where you made the mistake without redoing the whole puzzle.

The hints are very good at explaining the logic behind how a pencil mark can be removed or why a number can be placed. This game has explained and solved puzzles that others said were unsolvable.


Best Sudoku Ever!!

Update: still using this game after several years, I have never found another I like better. I like the daily games, though there never seems to be a shortage of new game to play. It definitely keeps my brain challenged. I am slowly moving up the difficulty chain. If I can exceed 50% most of the time, I'm ready to move on. Oh, and please don't add sounds that can't be turned off. I play in bed sometimes, chimes or other sounds would wake my partner.

Features I haven't found in other games, like highlighting all the places I've used a digit; letting me know when I've completed a row or column; highlighting a completed digit. It is my favorite.


Jason Linhart
6.2 MB
Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2008-2016 Jason T. Linhart


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