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Sudoku ′

Sudoku ′

Sudoku free of distraction

38K ratings
553 reviews
With Ads
🎮 Games
🎬 Entertainment
🎲 Board
🧩 Puzzle
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • December 16, 2010
  • June 20, 2025

Features

Developer

Mind The Frog, Inc.
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Sudoku ′ video #1 for iPhone
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Sudoku ′ screenshot #3 for iPhone
Sudoku ′ screenshot #4 for iPhone
Sudoku ′ screenshot #5 for iPhone
Sudoku ′ screenshot #6 for iPhone
iphone
ipad
🧾$1.99
In-App Purchase↘︎
📌Ready
Reviews summary↘︎
⭐553
Reviews↘︎
📝40+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
🏆3 achievements
Achievements↘︎
❓5 answered
FAQ↘︎
📦w/o updates
Updates frequency↘︎
🖼️Get Icon
Icons↘︎

About

Engage with an unlimited supply of Sudoku puzzles, playable online or offline. This app offers six difficulty levels, daily challenges, and a clean, user-friendly interface designed for both novice and expert players. Enjoy a distraction-free experience with customizable settings and essential tools like undo/redo and note-taking.

✓Unlimited Sudoku grids
✓Offline play
✓6 difficulty levels
✓Daily challenges
✓Undo/Redo functionality
✓Automatic and manual notes
✓Conflict and error highlighting
Show original description

What users say

Summarized from real user reviews of Sudoku ′. Based on 38K reviews and a 4.7/5 average, it highlights the 5 positives and 5 negatives reviewers mention most about this game.

Positive things

  • 👍Easy to use
  • 🧠Challenging levels
  • 🎨Customizable colors
  • 📝Helpful note-taking feature
  • 🔍Number highlighting

Negative things

  • 🔍Confusing note-taking behavior
  • 🔍Difficulty level jumps
  • 🔍Ads interrupting gameplay
  • 🔍Lack of progress tracking
  • 🔍Unstable on some devices
See all reviews

What's New in Sudoku ′

3.9.8

June 20, 2025

Performance improvements and bug fixes. Please continue to send us your feedback, bug reports, and feature requests to help@mindthefrog.com. Enjoy, The friendly team at mindthefrog :)

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Subscriptions & In-App Purchases

$1.99

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Enjoy an ad-free experience

User reviews

Most RecentHighest RatedLowest Rated

Great game until…

I paid for no advertising but the game itself bugs me every time I play it for a review. Sorry but no advertising means NONE! If I want to review it I will.
Dewy60Dewy60

Great game

First class
Brecon132Brecon132

Loyal reader2

I love this game. Easy to use. The only issue is that the app keeps asking me to review it almost after each game. Come on guys!
Loyal reader2Loyal reader2

You know, it IS sudoku.

I'm not a hardcore sudoku fan, and I don't exactly know why I got it. From my experiance, you know...it's sudoku. The easy levels seem a little hard for easy, but I have no room to say that. It's easy to navagate around, and it does work out pretty clean on my little querky iphone 6. Very best to the people who made this, I like it.!
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Brain Teaser

This is absolutely a great brain teaser game to keep your mental sharpness active.
kgm0510kgm0510
See 548 more reviews

Developer apps

Sudoku ′ No ads
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Classic number puzzle game

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User experience

🐞

Reported Bugs

4 issues

Puzzle errors

Bug

App crashes

Bug

Incorrect number placement

Bug

Sideways orientation on tablets

Bug
✨

Requested Features

5 requests

Ability to stay in note mode

Feature

More granular difficulty levels

Feature

Mute option for ads

Feature

Progress tracking and statistics

Feature

Improved stability on older devices

Feature

FAQ

What is this app?

This app provides an unlimited supply of Sudoku puzzles playable online or offline. It caters to all skill levels with six difficulty settings, daily challenges, and a clean, ergonomic design. Key features include undo/redo, note-taking, and error highlighting for a smooth gameplay experience.

What are the key features of this Sudoku app?

The app offers unlimited Sudoku grids, playable offline, across six difficulty levels from easy to diabolical. It includes daily challenges, a distraction-free interface with big buttons, undo/redo, 10 concurrent grids, automatic and manual notes, and conflict/error highlighting.

Is this app free to download and play?

Yes, the app is free to download and play. It is supported by ads and offers in-app purchases, which may provide additional features or remove advertisements. Specific pricing for in-app purchases is not detailed in the description.

What devices is this app compatible with?

This app is designed to be universal, meaning it is compatible with iPad, iPhone, and iPod touch devices. It also supports native resolution on all screens, including Retina displays, ensuring a crisp visual experience across Apple devices.

Who is this app for and what are common use cases?

This app is for anyone who enjoys playing Sudoku, from beginners learning the ropes to advanced players seeking a challenge. Common use cases include passing time during commutes, exercising the brain, or engaging in a relaxing yet mentally stimulating activity at home.