4.7
110 reviews
5K+
Downloads
Content rating
Everyone
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About this game

SudoQ is the ultimate sudoku app. Intuitive, unlimited supply, many difficulties and shapes, zero ads, open source, no permissions.
For a complete list of features, see below:

Not just 9x9
Bored by 9x9 sudokus? Try 16x16, 6x6, samurai sudokus or many more!

Too easy? Can't be!
We offer 4 difficulty levels. If you still get bored, please send us an email!

Not just back and forward!
Do I need a 6 or a 4 here? Why no try both? Any situation you encountered can be easily accessed in our History

Gesture input:
Tired of buttons? Just write the number on the screen with your finger!

Usefull assistances:
Need a hint? OK, we give you one. But you can not only check if you've made any mistakes so far. You can even let us take you back to the last correct status. Among other stuff.

We don't need internet.
SudoQ doesn't need to connect to any server before or while you play.
We neither need to download the sudokus nor do we need to send data anywhere.

Cow
We have a cow. Take that other sudoku-apps!

100% open source
Suspicious about what our app really does? Check the source!

SudoQ doesn't crawl for your data
We don't want it. Really. Check the code. Actually:

You don't need to give permission to:
-access any network, send or receive data
-look through your contacts
-read your phone state
-kidnap your grandma
-Whatsoever

-> we want you to enjoy sudoku, nothing more.

If you have trouble with the app please open an issue on github(or fix it on your own) or send us an email.
To help us with translation, please visit: http://translatesudoq.oneskyapp.com/
Updated on
Mar 31, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.7
96 reviews
A Google user
May 14, 2019
Does everything I want with no ads to spoil it. I've been using this app for years now and it has always worked perfectly. No ads and plenty of game styles to choose from. I would happily pay for this app but it's free!
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Ian T
September 13, 2021
Love the game! Your patch solved the freezing upon load. But on a 16x16 inferno, when putting in possible values in a position, I cannot erase the possible value that was entered. Please fix.
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TÄT Productions
September 20, 2021
Hello, we've fixed it. Thanks for reporting :)
Suman Dwivedi
March 19, 2021
Best sudoku app in my opinion. Clean and ad free with many, many levels and subtypes.
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What’s new

internal refactor

App support

About the developer
Jonathan Kieling
jonathan.kieling@gmail.com
Germany