Enjoy an engaging Killer Sudoku experience! Jump into enhanced gameplay, solve tons of puzzles, train your brain, and have fun!

Discover the new brain-training puzzle from the developer of!

Killer Sudoku by is great for both beginners and advanced players. Although Killer Sudoku is harder than classic sudoku, we made it accessible for players of all skill levels. With its enhanced gameplay, it's easy to follow the game rules and become a sudoku master in no time. Explore Killer Sudoku and discover a refreshing take on the classic paper-and-pencil sudoku puzzle.

What you get:

* Killer Sudoku puzzles to expand your sudoku experience.
* Thousands of levels to solve.
* Daily challenges to win unique trophies.
* Seasonal events to get unique medals.
* Hints and notes to guide you when you get stuck.
* Tons of gameplay to challenge your brain.
* New game from a top developer!

How to play:

* Fill all rows, columns, and 3x3 regions with numbers exactly like classic sudoku.
* Every cell is part of a cage, indicated by dotted lines.
* Make sure the cells can be added up to the sum in the upper left corner of the cage.
* The sum of all numbers of each 3x3 region, row or column always equals to 45.
* Numbers cannot repeat within cages, a single row, column, or 3x3 region.

Dive into the world of Killer Sudoku! Play anywhere, anytime!

What’s New

Version 1.3.0

- Performance and stability improvements

We hope you enjoy playing Killer Sudoku. We read all your reviews carefully to make the game even better for you. Please leave us some feedback why you love this game and what you'd like to improve. Keep your mind active with Killer Sudoku!

Ratings and Reviews

4.7 out of 5
27K Ratings

27K Ratings

t o m a ,

Excellent Game

I really enjoy this version of Killer Sudoku. I've played hundreds of games and not seen any that were "badly formed." Some were truly devilish to solve, and I often think that the expert level could be divided into 2 levels because of the differences in difficulty among those puzzles. Like another reviewer, I also noticed that I got more expert puzzles as dailies as I went along. I assumed that the game learned the players skill level and tuned the game to present appropriate puzzles. If it does not do that then let me suggest it. One comment for improvement is on the Ads. I like the way they are handled and how I can FF through many of them, and I like that they have the Adsense triangle on most of them to allow reporting bad ads. This is especially helpful because there are a set of ads that never exit and don't provide an X or close button. Those also don't seem to render properly. On those ads the only thing that works is clicking through to their website or returning to the ad. On them I have to kill the Killer Sudoku app and restart it to move on. Yet other ads lock up my iPad almost completely. I remember groaning over and over when the killer ad came up. It was for drinkable makeup or something like that. I have iPad 4 FWIW.

Developer Response ,

Hi! We are sorry for this, but to work as a free app we need revenue from Ads. After 5 seconds since the beginning of a video ad, there must appear an option to skip the ad: a fast forward/ cross-shaped button. If you don't want to see the Ads you can purchase the Pro version. If you can’t skip the ads, please let us know at

Mz. Oranj ,

Ha! I can Sudoku!

So I have always been fascinated by this game, but I don’t typically have whatever skills or gene required to do very well trying to fill in these puzzles. I can see the patterns, but I kept bombing even the “easy” puzzles. Those little boxes in the big boxes on this killer sudoku that let me know what the numbers each add up to are a lifesaver!!! Finally a way for me to have more confidence and certainty that I’m not just pulling a number out of thin air (and then getting it wrong). I’ve played more of this successfully than any other and am even willing (and have successfully) played some higher levels that I would never try with the traditional sudoku that I’ve seen. Yes. Love it. Only had it for a few days so far and I’ve played like 10 games I believe. Thank you

Developer Response ,

Hi, thanks for your feedback! We are pleased that you enjoyed the app. If there is anything we can do for you, just let us know at!
Have a wonderful day!

Multitasker mom ,

Hard to see

Interface is easy to use. Preset numbers are black and numbers you pencil in are dark blue. Not enough contrast to easily discern which are pre-existing and which you wrote in. I tried to see if there was a way to change the font color... not there. Also magnifying glass doesn’t help me see the number total in the corner of the cages. It’s super super small. I’ve also mistaken some cage groups when they extend over to another 3x3. It would be helpful if the dotted line was in red or another contrasting color.
Also when I initially started playing, I accidentally hit a wrong number- one that was not my intended target. Wasted an error bc of mistyping. There should be some way for it not to count if it is corrected immediately. I ended up turning off the error count in settings.
Fix these and the game would be perfect.
Disclaimer- This is my first killer sudoku. I do enjoy it. I’m not sure if others address the above issues or if they’re all the same.

Developer Response ,

Hi there! Thanks for sharing your thoughts with us. We're rolling out improvements every day in order to make the app satisfying for you. You're welcome to contact us at Your ideas and suggestions are highly appreciated.


179.2 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Arabic, French, German, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Traditional Chinese, Turkish, Vietnamese

Age Rating
In-App Purchases
  1. Remove Ads $4.99


  • Family Sharing

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

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