Sudoku HD! vs Sudoku Master∙
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Sudoku HD!
Experience Sudoku with a feudal Japan theme and stunning graphics. This app offers dual keypads for efficient input, smart note-taking features, and optional error checking. Enjoy multiple difficulty levels and thousands of puzzles.
- Dual keypad entry
- Smart notes feature
- Optional auto-notes
- Optional error checking
- Multiple difficulty levels
- Thousands of puzzles
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Take a journey to feudal Japan with Sudoku Free HD. With beautiful graphics and killer features, Sudoku Free HD is the best Sudoku app available for the iPad. DUAL KEYPAD ENTRY Two separate keypads, one for entries and one for notes, allow you to enter values quickly and easily. No more tedious switching between entry mode and note mode to complete your puzzle. SMART NOTES The optional auto-notes feature enters all of the notes into the puzzle for you and keeps them updated as you solve. If you don't want that much help, the optional smart notes feature automatically deletes values from notes you have entered manually when they are no longer valid. ERROR CHECKING The optional error checker tells you when you have entered an incorrect or illogical value, allowing you to catch errors early and preventing needless frustration. MULTIPLE DIFFICULTY LEVELS Five difficulty levels, from easy to insane, ensure that you will be able to find a puzzle that matches your skill level. With 3,000 total puzzles, you won't run out of puzzles any time soon. Download Sudoku Free HD for free today and start playing Sudoku the way it was meant to be played!
Sudoku Master∙
Engage in classic Sudoku puzzles designed for all skill levels, from beginners to advanced players. This app offers a mentally stimulating way to relax or keep your mind sharp, providing a portable and enjoyable experience.
- Classic Sudoku puzzles
- Multiple difficulty levels
- Suitable for beginners
- Challenging for advanced players
- Mental stimulation
- Portable gameplay
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Classic Sudoku for beginners and advanced players. Whether you'd like to relax or keep your mind active – pass time in a pleasant way! Get a small stimulating break or clear your head with Sudoku. Take your favourite game with you wherever you go. Playing Sudoku on mobile is as good as with a pencil and paper. Choose any level you like. Play easier levels to challenge your brain, or try expert levels to give your mind a real workout.
Screenshots
Verdict
The clearest difference is in-app purchases: Sudoku Master∙ at none against Sudoku HD!'s 10. Sudoku Master∙ also leads on ads (none vs shown) and device support (3 vs 1). Sudoku HD!'s advantage is update cadence (every 6 months vs every 15 months) and ratings volume (771 vs 72). On price, rating and review sentiment 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 HD! sells 10 one-off in-app purchases. Sudoku Master∙ asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.5 for Sudoku HD! against 4.6 for Sudoku Master∙. That said, the two scores are not equally well evidenced: Sudoku HD! has 771 ratings behind it against 72, so its average is the more settled of the two. Written reviews are what separate them: 87% of Sudoku HD!'s written reviews are positive against 92% of Sudoku Master∙'s.
Sudoku HD! ships an update every 6 months, Sudoku Master∙ every 15 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Sudoku HD! | Sudoku Master∙ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (771 ratings) | 4.6 (72 ratings) — better |
| Positive reviews | 86.9% of reviews | 91.9% of reviews — better |
| Number of ratings | 771 — better | 72 |
| Update frequency | Every 6 months — better | Every 15 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 | 9.3 — better |
| Further details — not scored | ||
| Size | 128 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Optime Software LLC | 晓俊 王 |
Customer experience
Sudoku HD!
Sudoku Master∙
User reviews
Sudoku HD!
From 771 App Store ratingsWhat we love
- 👍 Easy to use
- 🤓 Challenging puzzles
- 🎶 Relaxing music
- 💻 Great interface
- 🧠 Keeps mind active
Room to improve
- 🔍 Too many ads
- 🔄 Crashes and freezes
- 🎨 Dislike new layout changes
- 🤦♂️ Penalizes for mistakes
- 🔒 Cannot revert to old version
Sudoku Master∙
From 72 App Store ratingsWhat we love
- 👍 Simple and easy to use
- 🚀 Clean and efficient interface
- 💡 Good variety of difficulty levels
- 🕹 Challenging and engaging gameplay
Room to improve
- 🔒 Forced 5-star rating to unlock levels
- 🔍 Lack of customization options
- 💤 Repetitive gameplay
- 📢 Intrusive advertisements
Bugs and requests
Sudoku HD!
Reported bugs
3 issues- Puzzles marked as completed when they are not
- Crashes when trying to play 'insane' level puzzles
- Purchases not restoring across devices
Requested features
4 requests- Allow resetting of puzzles
- Provide level selection options
- Automatically clear notes when number is entered
- Add landscape mode support
Sudoku Master∙
Reported bugs
3 issues- Crashes on older devices
- Pencil mode not working as expected
- Incorrect puzzle solutions in some cases
Requested features
4 requests- Add option to disable sounds/music
- Implement a pause/resume feature
- Provide more advanced difficulty levels
- Allow users to create and share custom puzzles
In-app purchases
Sudoku HD!
- Puzzle Pack - Showa$0.99
- Puzzle Pack - Kurikara$0.99
- Puzzle Pack - Subushi$0.99
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- Puzzle Pack - Miura$0.99
- Puzzle Pack - Ishizu$0.99
- Puzzle Pack - Sakai$0.99
- Puzzle Pack - Genpei$0.99
- Puzzle Pack - Norada$0.99
- Puzzle Pack - Meiji$0.99
- Puzzle Pack - Taisho$0.99
Sudoku Master∙
No in-app purchases
