Sudoku ′ vs Sudoku ∙
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Sudoku ′
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
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Sudoku for beginners and advanced players alike, with unlimited grids on or offline, 6 difficulty levels ranging from "easy" to "diabolical," daily challenges, and a beautiful ergonomic design. Sudoku with no distractions: - Fast: no lengthy intros or slow animations. - Small: doesn't eat up a lot of storage on your device. - Friendly: big buttons avoid fat-fingering. - Non-intrusive: plays your music and nothing else. Sudoku with all the nuts and bolts: - Undo / Redo. - 10 concurrent grids. - Automatic and manual notes. - Conflict and error highlighting. - Customizable input and display settings. Sudoku on all your devices: - Universal: iPad, iPhone, and iPod touch. - Retina: native resolution on all screens. For feature requests and feedback, please email us at help@mindthefrog.com. Enjoy, The friendly team at mindthefrog :)
Sudoku ∙
Engage in a classic logic puzzle with multiple difficulty levels, from beginner to expert. Features include automatic saving, customizable options, and a beginner tutorial. Enjoy a well-crafted gameplay experience designed for maximum enjoyment on your mobile device.
- Multiple difficulty levels
- Beginner tutorial
- Automatic game saving
- Customizable in-game options
- Left or right-handed play
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Sudoku is now available for iPhone, iPod Touch and iPad - with a level of gameplay never seen before in the AppStore! Discover this great version of Sudoku and join thousands of other addicted players - "This version is really well made - clean and easy to play. My favourite." - "Great game! I'll definitely recommend it to my friends." DIFFERENT GAME MODES - Four levels of difficulty - you can enjoy the game whether you're a beginner or an expert! - Novice player? Try our beginners' sudoku, with an interactive tutorial. - Or are you a Sudoku expert? Try the 'Impossible' level! - Left or Right-handed A FULL, FUN VERSION OF SUDOKU - Each turn is automatically saved - Prevent screen time-out during game time - The graphics have been designed to maximise your enjoyment Customise your game with many different in-game options, which you can turn on or off: - Show same-value numbers entered - Prevent same numbers from being entered - Activate or deactivate the timer
Screenshots
Verdict
The clearest difference is ratings volume: Sudoku ′ at 39K against Sudoku ∙'s 1.4K. On price, rating, review sentiment and update cadence there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Sudoku ′ sells 1 one-off in-app purchase and Sudoku ∙ sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.7 for Sudoku ′ against 4.7 for Sudoku ∙. That said, the two scores are not equally well evidenced: Sudoku ′ has 39K ratings behind it against 1.4K, so its average is the more settled of the two. Written reviews are what separate them: 81% of Sudoku ′'s written reviews are positive against 79% of Sudoku ∙'s.
Sudoku ′ ships an update every 3 months, Sudoku ∙ every 2 months. The most recent releases landed on October 27, 2026 and October 26, 2026 respectively.
| Parameter | Sudoku ′ | Sudoku ∙ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (39K ratings) | 4.7 (1.4K ratings) — better |
| Positive reviews | 81.3% of reviews — better | 79.0% of reviews |
| Number of ratings | 39K — better | 1.4K |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple TV — better |
| Requires iOS | 12.4 — better | 13.0 |
| Further details — not scored | ||
| Size | 6 MB | 113 MB |
| Age rating | 4+ | 4+ |
| Developer | Mind The Frog, Inc. | Solitaire Games Studio |
Customer experience
Sudoku ′
Sudoku ∙
User reviews
Sudoku ′
From 39K App Store ratingsWhat we love
- 👍 Easy to use
- 🧠 Challenging levels
- 🎨 Customizable colors
- 📝 Helpful note-taking feature
- 🔍 Number highlighting
Room to improve
- 🔍 Confusing note-taking behavior
- 🔍 Difficulty level jumps
- 🔍 Ads interrupting gameplay
- 🔍 Lack of progress tracking
- 🔍 Unstable on some devices
Sudoku ∙
From 1.4K App Store ratingsWhat we love
- 👍 Easy to use interface
- 💡 Separate note-taking feature
- 🚀 Responsive gameplay
- ⭐ Challenging difficulty levels
Room to improve
- 🔍 Small font size
- 💸 Excessive ads
- 🐛 Crashes and freezes
- 🔁 Inability to save progress
Bugs and requests
Sudoku ′
Reported bugs
4 issues- Puzzle errors
- App crashes
- Incorrect number placement
- Sideways orientation on tablets
Requested features
5 requests- Ability to stay in note mode
- More granular difficulty levels
- Mute option for ads
- Progress tracking and statistics
- Improved stability on older devices
Sudoku ∙
Reported bugs
3 issues- Incorrect puzzle solutions
- Inconsistent scoring and progress tracking
- Ads that disrupt gameplay
Requested features
4 requests- Option to disable ads
- Larger grid size
- Ability to review completed puzzles
- Customizable themes and appearances
In-app purchases
Sudoku ′
- Remove Ads$1.99
Sudoku ∙
- Remove advertising$2.99
