SudokuScan 4+

Your smart sudoku solver

Christoph Reinders

Designed for iPhone

    • 4.0 • 4 Ratings
    • Free

iPhone Screenshots


SudokuScan turns your mobile device into a powerful sudoku scanner. It automatically detects your sudokus including the printed and handwritten numbers. SudokuScan solves every solvable sudoku and gives you a hint when your are stuck on a tough sudoku. You can also see the solution if you want to impress your friends by solving it as the fastest.

* AI-based Sudoku scanning
* Powerful compter vision and machine learning algorithms for automatic detection
* Optical character recognition (OCR) of printed and handwritten numbers
* Live preview thanks to efficient image processing
* Get hints or show the solution
* Save your scanned Sudokus to get another hint later
* Pick photos from your gallery
* Works on curved surfaces like books

* Place the Sudoku on a flat surface
* Use a black pen
* Do not cover parts of the Sudoku, for example with a pen
* Make sure the other side of the paper doesn't show through

We would love to hear from you. If you have questions, feedback, or suggestions, please contact us. Also if you have a sudoku that is not detected correctly, please take a photo and send it to us and we will improve the algorithm.


What’s New

Version 1.3

In this version, we improved the Sudoku scanning even further and fixed a bug in the Sudoku solving algorithm.

Ratings and Reviews

4.0 out of 5
4 Ratings

4 Ratings

j.p.kerspe ,

Works like a charm if photo quality is adequate

Make sure you take the photo of the sudoku puzzle with good lighting and without distortion then the app will do just what it is supposed to do. I tested it with some sudokus with the size of approximately 10 by 10 cm printed on non glossy paper with plain white background and recognition was 100% correct.

Ace2566 ,

Absolute garbage

This app is absolute garbage. It doesn’t work had every number programmed in correctly and it said no solution. App is junk

Developer Response ,

Hi, sorry to hear that no solution was found for your Sudoku. Please send a photo of your Sudoku to and we are happy to help!

Jenn0219 ,

Pointless and not worth the download

Doesn’t work. It’s pointless

App Privacy

The developer, Christoph Reinders, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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