# Sudoku HD! vs Sudoku Master∙

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.

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.

## The numbers

| Metric | Sudoku HD! | Sudoku Master∙ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (771 ratings)](https://appshunter.io/ios/app/sudoku-hd/id397229659/reviews) | **[4.6 (72 ratings)](https://appshunter.io/ios/app/sudoku-master/id1268394068/reviews)** |
| Number of ratings | **771** | 72 |
| Positive reviews | 86.9% of reviews | **91.9% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 months** | Every 15 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 128 MB | 21 MB |
| Requires iOS | 12.0 | **9.3** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Optime Software LLC](https://appshunter.io/developer/289278460) | [晓俊 王](https://appshunter.io/developer/1510696862) |

## What reviewers say

### Sudoku HD!

[App page](https://appshunter.io/ios/app/sudoku-hd/id397229659)

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.

**Highlights:** Dual keypad entry, Smart notes feature, Optional auto-notes, Optional error checking, Multiple difficulty levels, Thousands of puzzles

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Puzzle Pack - Showa | $0.99 | one-time |
| Puzzle Pack - Kurikara | $0.99 | one-time |
| Puzzle Pack - Subushi | $0.99 | one-time |
| Puzzle Pack - Miura | $0.99 | one-time |
| Puzzle Pack - Ishizu | $0.99 | one-time |
| Puzzle Pack - Sakai | $0.99 | one-time |
| Puzzle Pack - Genpei | $0.99 | one-time |
| Puzzle Pack - Norada | $0.99 | one-time |
| Puzzle Pack - Meiji | $0.99 | one-time |
| Puzzle Pack - Taisho | $0.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🤓 Challenging puzzles
- 🎶 Relaxing music
- 💻 Great interface
- 🧠 Keeps mind active

**What reviewers complain about**

- 🔍 Too many ads
- 🔄 Crashes and freezes
- 🎨 Dislike new layout changes
- 🤦‍♂️ Penalizes for mistakes
- 🔒 Cannot revert to old version

**Reported bugs**

- Puzzles marked as completed when they are not
- Crashes when trying to play 'insane' level puzzles
- Purchases not restoring across devices

**Requested features**

- Allow resetting of puzzles
- Provide level selection options
- Automatically clear notes when number is entered
- Add landscape mode support


### Sudoku Master∙

[App page](https://appshunter.io/ios/app/sudoku-master/id1268394068)

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.

**Highlights:** Classic Sudoku puzzles, Multiple difficulty levels, Suitable for beginners, Challenging for advanced players, Mental stimulation, Portable gameplay

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Clean and efficient interface
- 💡 Good variety of difficulty levels
- 🕹 Challenging and engaging gameplay

**What reviewers complain about**

- 🔒 Forced 5-star rating to unlock levels
- 🔍 Lack of customization options
- 💤 Repetitive gameplay
- 📢 Intrusive advertisements

**Reported bugs**

- Crashes on older devices
- Pencil mode not working as expected
- Incorrect puzzle solutions in some cases

**Requested features**

- Add option to disable sounds/music
- Implement a pause/resume feature
- Provide more advanced difficulty levels
- Allow users to create and share custom puzzles


## Frequently asked questions

### Is Sudoku HD! free?

Sudoku HD! is free to download, with in-app purchases available.

### Is Sudoku Master∙ free?

Sudoku Master∙ is free to download, with no in-app purchases.

### Which has better reviews, Sudoku HD! or Sudoku Master∙?

Sudoku Master∙ is rated higher. Sudoku HD! averages 4.5 out of 5 from 771 ratings, while Sudoku Master∙ averages 4.6 from 72 ratings.

### Do Sudoku HD! or Sudoku Master∙ have ads?

Sudoku HD! shows ads; Sudoku Master∙ does not.

### Which is updated more often, Sudoku HD! or Sudoku Master∙?

Sudoku HD! ships an update every 6 months, and Sudoku Master∙ every 15 months. Most recently, Sudoku HD! was updated on November 1, 2026 and Sudoku Master∙ on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*