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 your mind with a classic Sudoku puzzle game. Enjoy a clean interface and multiple difficulty levels. Track your progress and compete with others.
- Daily Challenge
- Multiple difficulty levels
- Note taking
- Hint system
- Highlight incorrect values
- Individual statistics
- Game Center leaderboard
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Pass the time while you challenge your mind with this classic Sudoku game. The clean, simple layout makes it easy to play for hours at a time. The objective is simple, fill the 9×9 grid with digits so that each column, row, and the nine 3×3 sub-grids contains all of the digits from 1 to 9. Sudoku· features: - Daily Challenge - Four levels (easy, medium, hard, and expert) - Disable numbers once all 9 instances are entered - Note taking ability - Hint (fill in missing number when you are stuck) - Highlight Incorrect Values - Auto Reveal all potential notes - Individual statistics - Game Center with Leaderboard and Achievements Download today for mind-challenging fun.
Screenshots
Verdict
The clearest difference is in-app purchases: Sudoku· at none against Sudoku ′'s 1. Sudoku ′'s advantage is review sentiment (81% vs 66%). On price, rating, ratings volume 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. Sudoku· asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for Sudoku ′ against 4.7 for Sudoku·. Both are backed by a comparable volume of ratings — 39K and 17K respectively. Written reviews are what separate them: 81% of Sudoku ′'s written reviews are positive against 66% of Sudoku·'s.
Sudoku ′ ships an update every 3 months, Sudoku· every 2 months. Both last shipped on October 25, 2026.
| Parameter | Sudoku ′ | Sudoku· |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (39K ratings) — better | 4.7 (17K ratings) |
| Positive reviews | 81.3% of reviews — better | 65.7% of reviews |
| Number of ratings | 39K — better | 17K |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.4 — better | 13 |
| Further details — not scored | ||
| Size | 6 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Mind The Frog, Inc. | Tim O's Studios, LLC |
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 17K App Store ratingsWhat we love
- ⭐ Excellent sudoku game
- 👍 Easy to use and understand
- 🧠 Helps exercise the brain
- 💤 Relaxing and calming
Room to improve
- 🙄 Excessive ads and interruptions
- ⏱️ Ads affect game timer
- 🔇 Cannot mute or control audio
- 🐛 Bugs and crashes
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
4 issues- Game freezes or crashes after updates
- Timer issues due to ads
- Difficulty closing ads or navigating UI
- Incompatibility with newer devices
Requested features
4 requests- Option to pay for ad-free version
- Ability to pause and restart games
- More detailed performance tracking
- Customizable color themes
In-app purchases
Sudoku ′
- Remove Ads$1.99
Sudoku·
No in-app purchases
