SUDOKU MASTER EDITION takes the world famous number puzzle to new heights with its minimalist, modern, and feature-rich design.

We meticulously designed the game from the ground up: whether you’re a seasoned Sudoku addict or new to this easy to learn, but hard to master brain teaser - our version of this classic logic puzzle can be customized to your needs and preferences, including some you didn’t even know you needed!

Download the world’s #1 number puzzler for FREE and enjoy a plethora of features & cool extras like:

* FONTS: 26 finely curated ones to be exact.
* COLORS: Our modern custom color palette makes it easier for you to find the right hue for your numbers, notes, and highlights.
* LIGHTNING MODE: Do you feel like filling in a bunch of 4’s in a row? Hit the new Lightning Bolt icon, select a number, and tap away!
* MISTAKE MODE: When enabled, it bounces out incorrect numbers.
* CLASSIC MODE: You can now leave your mistakes on the board.
* GAME BOARD: Choose from 2 sizes - they’re both equally minimalistic and pleasing on the eyes!
* LEVELS: Featuring 5 levels, ranging from “Easy” to “Master”.
* GRID STYLE: Adjust the line weight to whatever pleases YOUR eyes.
* ZEN MODE: Click on the lotus flower to remove ALL FEATURES, including the timer, points & error count, for the ultimate distraction-free gameplay. Relax :)
* NOTES: Leave a note if you’re uncertain - you can even select to have obsolete notes removed.
* APP ICONS: Choose from 13 icons to match YOUR home screen.
* DARK THEME: Because night owls enjoy a good game of Sudoku as well.
* MUSIC: We collaborated with ambient-music mastermind EARLYGUARD to provide you with a relaxing, zen soundtrack.
* HIGHLIGHT HELPER: Select any square and the corresponding row and column will highlight automatically to improve your focus.
* FORCE TOUCH: Start a new game with two taps. We timed it - you’ll be playing in 2 seconds flat!


APPLE PENCIL INTEGRATION (Requires compatible iPad & Apple Pencil):

- PEN & PAPER EXPERIENCE: Jot down the numbers & notes with your APPLE PENCIL - directly into the square! SUDOKU MASTER EDITION’s latest handwriting integration recognizes everyone’s individual handwriting.
- NOTEPAD: Jot down ideas, sketches, or anything else that crosses your mind. Undo, redo, erase, and delete with a single tap.

No Apple Pencil? No need to scribble? No problem. Just toggle the notepad off & enjoy the game.

If you’re a leftie you’ll be pleased to find an option under SETTINGS to move your Notepad to the left side of the screen.
(Requires compatible iPad & Apple Pencil).

Finally, SUDOKU MASTER EDITION offers you everything you love about iOS, like Game Center Integration, beautifully designed icons to go in-line with iOS, and a contemporary interface.

And because we REALLY love Sudoku, we already have some incredible future features and updates in the works, so stay tuned!

What's New

Version 4.0.1

We’d like to apologise for taking so long to release an update - the bugs have become better at camouflaging themselves, but thanks to your emails we were able to locate the culprits yet again & go on a squashing spree:

- Fixed Scoring in Classic Mode: Some of pointed out that our scoring system was flawed - and you were right, so we fixed it.
- Animations: Disabling animations now turns off ANY and ALL kind of twirls, spins, etc.
- Highlights: Some users reported an issue where highlights jumped all over the place. It took us a while to figure out what went wrong, but we fixed it. We can no longer see the issue, but if you do please contact us.
- Force Touch Duplicates: This seems to be an iOS11 issue, and while it does show up on some of our devices, it doesn’t on others. We did what we could, and we’ve submitted a bug report to Apple.

We would like to thank everyone who has supported us by downloading our little app, sending us bug reports, feature requests, and general feedback. If you happen to come across any bugs, please contact us at We usually respond the same day :)

Ratings and Reviews

4.7 out of 5

1.8K Ratings

1.8K Ratings

Editors’ Notes

We love this simple, modern and highly customizable new version of the classic puzzle.

Was much better before version 3...


This latest update has introduced a bunch of bugs. Some are so fundamental as to make the game almost unusable now - it doesn’t remove notes as it’s supposed to when a number is locked in to a row, and just now I noticed it actually let me enter the number 2 twice in one row. The auto-fill function (for when there’s just one number in a segment remaining) has also stopped working properly, and all of a sudden the Apple Pencil integration is allowing non-pencil input, drawing on the notepad or filling number boxes with handwriting even when I’m not using the pencil, just tapping the screen with my finger! Also, the numbers no longer “go away” when they’re all placed. It used to be that when you had 9x 2s, the 2 would disappear as an option. Now it stays there, even though you can’t use it any more.

This was definitely the best sudoku app in the App Store, up until two days ago. Now.... eh. Needs some help!

Edit: updating to 5 stars based on developer response and quick resolution of reported issues! Mistakes happen but what matters is how you respond to them. And this team responded exactly as they should. Thanks, guys!

Developer Response

UPDATED: Thanks so much for the revised review. We really are working super hard to make sure that problems are taken care of immediately. We do have some friends and family and even users who beta test for us but don't always catch stuff, then there are device specific issues. We are grateful for your understanding, patience, sticking with us when we have issues and most importantly: giving us the opportunity to correct them. Thank you again!

Please update to the latest version that was just released today Dec 3. We hope that you find the new version to be a much better experience than 1 star. Please feel free to email us at if you have any issues or suggestions. Thank you for your support!


Version 3.0 introduced a new mode - Classic Mode, which is activated by default. Please go into your settings & switch back to Mistake Mode, where you can enable to have duplicates removed, turn Quick Mode back on, etc.

Hope this helps!

Great sudoku app but....


I love the pencil input for the puzzles themselves. It’s very comfortable and intuitive to use. The interface is clean, music is relaxing. Overall very, very nice. BUT, I do have one small issue and one major one.

My small issue is that I would love additional themes (perhaps a few free ones and a few paid ones, or ones you get for watching ads or something) such as different kinds of ‘paper’. You can switch from dark to light in settings, which is great.

My second issue is more major, and forgive me if there’s a setting I just don’t see but... there is NO way to input a wrong number into the grid. It will simply say wrong number until you enter the correct one, and only then will it enter the number. This is in my mind a huge flaw because it means that when you’re stuck you can just put in on numbers until one is fixed into place by the game and you can proceed. It also defeats the purpose of the ‘notes’ you can make because if you’re stuck between two numbers or something you can just check which one goes in.

You can turn on a challenge mode which will end your game if you make four mistakes like this, but to me this feels tense and anti-sudoku. I’d MUCH rather have a natural puzzle experience (or at least the option of one) in which the numbers I input are a slightly paler ‘pencil’ color, and I’m allowed to go back and erase them if something doesn’t add up.

Other than that this would be a truly fantastic experience. :)

Developer Response

Hi Airdarynn,

Thank you for taking the time to leave us such a detailed review. Hi Mrzouz,

Regarding your issues: we have some good news: our next update (coming sometime next week) will include a Classic Mode, which won't highlight or bounce errors, leaving the user to figure out their mistake(s).

We do plan on adding a few different backgrounds in the future - for now, we decided to focus on giving users the most gaming & customisation options (in terms of gameplay). But, rest assured - themes are coming :)

Thank you for your feedback, as well as for playing our game.


Hoolatron Studios
89.4 MB
Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, French, German, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Traditional Chinese, Turkish, Vietnamese
Age Rating
Rated 4+
© 2017 Hoolatron Studios
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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