# Sudoku vs Sudoku ′

Sudoku and Sudoku ′ both sit at 4.7 stars, but that hides the real split: 82% of Sudoku ′'s written reviews are positive against 65% of Sudoku's. Sudoku ′ also leads on iOS requirement (12.4 vs 15.0). Sudoku's advantage is update cadence (monthly vs every 3 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Sudoku sells 11 in-app purchases, starting at $0.99 per month 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 ′. Both are backed by a comparable volume of ratings — 59K and 39K respectively. Written reviews are what separate them: 65% of Sudoku's written reviews are positive against 82% of Sudoku ′'s.

Sudoku ships an update monthly, Sudoku ′ every 3 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | Sudoku | Sudoku ′ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (59K ratings)](https://appshunter.io/ios/app/sudoku/id398990729/reviews) | **[4.7 (39K ratings)](https://appshunter.io/ios/app/sudoku/id408188960/reviews)** |
| Number of ratings | **59K** | 39K |
| Positive reviews | 65.1% of reviews | **81.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 147 MB | 6 MB |
| Requires iOS | 15.0 | **12.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Maple Media Apps, LLC](https://appshunter.io/developer/1289801633) | [Mind The Frog, Inc.](https://appshunter.io/developer/329981779) |

## What reviewers say

### Sudoku

[App page](https://appshunter.io/ios/app/sudoku/id398990729)

Engage your mind with this classic Japanese logic puzzle. Offers multiple difficulty levels, customizable backgrounds, and unique emoji number options. Track progress and compete with others.

**Highlights:** Four difficulty settings, Customizable background colors, Emoji number option, Duplicate highlighting, Unlimited Undo/Redo, Autosave functionality, Leaderboards and achievements, Note-taking feature

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $0.99 | per month |
| Premium Monthly | $1.99 | per month |
| Sudoku Apps Bundle | $7.99 | per month |
| Premium Annual | $8.99 | per year |
| Sudoku Membership | $14.99 | per year |
| Sudoku Bundle | $14.99 | per month |
| Premium Annual | $14.99 | per year |
| Sudoku Apps Bundle | $64.99 | per year |
| Sudoku Apps Bundle | $99.99 | per year |
| Sudoku Bundle | $129.99 | per year |
| Disable Ads | $24.99 | one-time |

**What reviewers like**

- 🚀 Great game
- 👍 User-friendly interface
- 📊 Tracks stats and times
- 💡 Useful features like pencil mode
- 🧠 Challenges the brain

**What reviewers complain about**

- 🔍 Intrusive ads
- 💰 Expensive ad-free version
- 🐛 Crashes and freezes
- 🔋 Battery draining
- 🔇 Disrupts audio playback

**Reported bugs**

- Numbers getting stuck/grayed out
- Inconsistent difficulty levels
- Display issues on newer devices
- Crashes after updates

**Requested features**

- Dark mode option
- Customizable color themes
- Option to disable number highlighting
- Reset button that fully clears the board
- More granular difficulty levels


### Sudoku ′

[App page](https://appshunter.io/ios/app/sudoku/id408188960)

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.

**Highlights:** Unlimited Sudoku grids, Offline play, 6 difficulty levels, Daily challenges, Undo/Redo functionality, Automatic and manual notes, Conflict and error highlighting

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- Puzzle errors
- App crashes
- Incorrect number placement
- Sideways orientation on tablets

**Requested features**

- Ability to stay in note mode
- More granular difficulty levels
- Mute option for ads
- Progress tracking and statistics
- Improved stability on older devices


## Frequently asked questions

### Is Sudoku free?

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

### Is Sudoku ′ free?

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

### Which has better reviews, Sudoku or Sudoku ′?

Sudoku ′ is rated higher. Sudoku averages 4.7 out of 5 from 59K ratings, while Sudoku ′ averages 4.7 from 39K ratings.

### Do Sudoku or Sudoku ′ have ads?

Both Sudoku and Sudoku ′ show ads.

### Which is updated more often, Sudoku or Sudoku ′?

Sudoku ships an update monthly, and Sudoku ′ every 3 months. Most recently, Sudoku was updated on October 30, 2026 and Sudoku ′ on October 30, 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.*