You can now play Sudoku, Killer Sudoku, Jigsaw Sudoku, Kakuro,Mini Sudoku and Sudoku X from the one application.

Our puzzles are published worldwide including the Daily Telegraph, Chicago Tribune and LA Times. All our puzzles are expertly graded and we guarantee that there is only one solution. Our puzzles can be solved using logical methods with no guesswork required.

We run a daily competition for each puzzle type and you can submit your completed entry and view your position on our daily leader board.

You can practice Sudoku puzzles by choosing from our graded puzzles - Gentle, Moderate, Tough and Diabolical.

With both the Daily puzzles and the Practice Puzzles, we save your progress as you go, stopping the clock as you exit. All pencil marks are saved when you exit.

The display is clear and easy to read and you can also display possibles for any cell. You can enter pencil marks for all puzzle types. Pencil marks are saved when you exit the application or receive a phone call.

What's New

Version 2.11

Added compatibility for all devices
Added and updated themes
Bug Fixes

Ratings and Reviews

2.4 out of 5

36 Ratings

36 Ratings

Great APP!!


Not functioning at all right now. I hope this is corrected soon!

I love this app for the variety of Sudoku games. However, lately it has not been working - I like the daily games and they have not been available recently. I am hoping they come back soon. Also, I would like to see some improvements in functionality. Particularly with Killer Sudoku - the ability to add and having possible solutions for the Killer game would help.

new to cool


New to cool sudoku, like the range of games and levels,however having trouble with some of the features. When exit a game my progress
isn't always saved; the 'updating possibilities' while playing I find erratic,seems to sometimes work sometimes not...I'm uncertain is this part of the difficulty level? I'd also like more practice games. This is a different sudoku app
as seasoned reviewers have indicated. I look forward to the improvements on smoothing out your new design and functionality.

Changes are horrible!


I loved this app, it is one of the few that had "jigsaw" sudoku puzzles. I was shocked when I opened it last night, after not playing for a while, and saw it had been completely redesigned - and not for the better. The new look is awful, and there are only about 6 practice puzzles now for each difficulty, where there used to be a very long list of practice puzzles. In addition to that, all of the puzzles I had been working on or completed are gone! Very disappointing and I will be trying to find another app with jigsaw sudoku or doing paper puzzles again.


Trevor Bond
46.1 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© Social Puzzler Ltd


  • Family Sharing

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

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