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Cool Sudoku, Jigsaw, Killer, Kakuro, Sudoku X

By Splash Software Ltd.

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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 in Version 2.11

Added compatibility for all devices
Added and updated themes
Bug Fixes


iPhone Screenshot 1
iPad Screenshot 1
iPad Screenshot 2
iPad Screenshot 3
iPad Screenshot 4
iPad Screenshot 5

Customer Reviews

Not Cool anymore!

Not so Cool Sudoku
-Totally lost its aesthetics and ease of use with new format! ( ie. Plain numbers, not asian inspired for the Japanese theme? Oversized puzzle but undersized control buttons?
No rhyme or reason in the design.
-Lost uniqueness in the sea of games out there.
-Offering to turn numbers instantly 'red' if incorrect? Seriously at these levels?
-Obviously visual enlargement of the numbers was a goal...but why would you then 'shrink' the size of the control buttons and make it so difficult to use??? Very annoying!
-A definite lag in responsiveness when clicking in the numbers, slowing down the whole competitive aspect.

Unfortunately, you've joined the low ranks of the rest of the desperate masses of game creators out there....when you HAD a winner!!
After enjoying years of Cool Sudoku, I can't understand WHY you'd go through this whole updating to become counterproductive and lose your faithful audience! (If only I had known, I wouldn't have updated my daily-dependable-old method of decompressing : (
I want my old app back!
A total failure.

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.


Firstly, thank you for fixing compatibility issues. I think?

The problem really, as others have mentioned, is the cosmetic changes are DREADFUL. The pen/pencil row of buttons are ridiculously small for players who don't have baby fingers.

I've loved this game for years—that it delivered working varieties of the games in one app before others was commendable. It was my daily ritual. Since the changes, I've barely opened it. I'll return when i can continue to play the screen and toggle easily with my ginormous fingertips.

Cool Sudoku, Jigsaw, Killer, Kakuro, Sudoku X
View in iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Games
  • Updated:
  • Version: 2.11
  • Size: 46.1 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions: