Ninja Sudoku – Hints & Solver

Name: Ninja Sudoku – Hints & Solver
Availability: InStock
Rating: 4.454545497894287 (461 reviews)
Author: m00nlight

m00nlight

Contains adsIn-app purchases

4.5

461 reviews

50K+

Downloads

Everyone

About this game

Ninja Sudoku: The ultimate offline Sudoku app!

Enjoy classic Sudoku, Killer Sudoku, Jigsaw, and X Sudoku — over 300,000 puzzles from easy to expert. Play ad-free, scan puzzles with your camera, get unlimited smart hints, and improve your skills with built-in logic strategy explanations.

🧠 Features:
✓ 300,000+ puzzles in 5 difficulty levels
✓ No ads while playing
✓ Scan Sudoku from camera or image
✓ Play Classic, X, Jigsaw & Killer Sudoku
✓ Smart solver with logical step-by-step hints
✓ Clean UI, fast input, auto-candidates
✓ Notes, undo/redo, highlight duplicates
✓ Learn techniques: X-Wing, Y-Wing, Naked Pairs, and more

💡 Brain Boosting Benefits:

Playing Sudoku daily improves memory, reduces stress, and sharpens focus. It’s the perfect mental workout for all ages.

Install Ninja Sudoku now and train your brain the smart way — anytime, anywhere!

Updated on

31 Jul 2025

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.

This app may share these data types with third parties

App info and performance and Device or other IDs

No data collected

Learn more about how developers declare collection

Data is encrypted in transit

Data can’t be deleted

Ratings and reviews

4.4

432 reviews

Ramakant Kulkarni

25 July 2025

Earlier app was very good. In new app we cannot load data manually. Scanned image sometimes show error.

m00nlight

1 August 2025

Hi Ramakant, we just released a new version which add old manual input method to input a game. Hope this will resolve your issue. If you have any other suggestion or feedback, you're welcome to contact us in the app(using send feedback button) or leave comment here. Thanks for your feedback. Really appreciate.

Ravi J S Bhat

30 June 2020

Good sudoku app! In the couple of other sudoku apps that I've tried the difficult levels were too easy. This app is not so. Some features that ie would like to see: 1. When I click a cell the row, column and that square are highlighted. Would like some way to disable that. 2. When I click a cell and then hit notes it won't start entering the notes in the cell. I have to click the cell again. 3. Hints do not take into account the possibilities that I've already eliminated.

16 people found this review helpful

m00nlight

30 June 2020

Hi, thanks for your feedback. We will add 1) in future release. For problem 2), we actually fix the problem in the latest release. And for 3), you could enable "generate notes when start" in advanced setting to get more consistent hint experience. So for 2) and 3), could you please discuss with us through m00nlight.appdev@gmail.com if possible?

terry fetzer

8 June 2025

love your sudoku game but have a question. if you have solved all the puzzles on one level is there a way you can reset the level to play them all again?

m00nlight

9 June 2025

Hi Terry, thanks a lot for your review! 😊 Glad you're enjoying the game. You can clear your playing records in the Statistics section—just tap the three-dot button at the bottom and you will see it. Just note it will erase all records, not just for one level. Hope that helps!

What's new

1. Add support for manual input for the custom game and solver.
2. Number first mode add feature to un-select selected number by tapping it again when selected.

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