# 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 38% of Sudoku ▦'s. Sudoku ′ also leads on iOS requirement (12.4 vs 15.0). Sudoku ▦'s advantage is in-app purchases (none vs 1) and update cadence (every 2 weeks vs every 3 months). On price, rating, ratings volume and ads there is nothing between them.

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 104K respectively. Written reviews are what separate them: 82% of Sudoku ′'s written reviews are positive against 38% of Sudoku ▦'s.

Sudoku ′ ships an update every 3 months, Sudoku ▦ every 2 weeks. Both last shipped on November 2, 2026.

## The numbers

| Metric | Sudoku ′ | Sudoku ▦ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (39K ratings)](https://appshunter.io/ios/app/sudoku/id408188960/reviews)** | [4.7 (104K ratings)](https://appshunter.io/ios/app/sudoku/id1407780576/reviews) |
| Number of ratings | 39K | **104K** |
| Positive reviews | **81.5% of reviews** | 37.6% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 6 MB | 249 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Mind The Frog, Inc.](https://appshunter.io/developer/329981779) | [Tripledot Studios](https://appshunter.io/developer/1191319103) |

## What reviewers say

### 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


### Sudoku ▦

[App page](https://appshunter.io/ios/app/sudoku/id1407780576)

Enjoy the classic paper-and-pencil puzzle game on your phone with a clean, elegant design. Challenge your mind with multiple difficulty levels and helpful tools to aid your solving experience.

**Highlights:** Thousands of free puzzles, Classic Sudoku design, Pencil mode for notes, Highlight duplicates, Optional mistake limit, Four difficulty levels, Customizable appearance

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

**In-app purchases:** none

**What reviewers like**

- 🎮 Great game
- 💡 Challenging levels
- 📊 Useful statistics and insights
- 🧠 Brain-stimulating

**What reviewers complain about**

- 🤖 Too many ads
- 🕰️ Ads disrupt gameplay
- 🔇 Loud ads disrupt audio
- 🔋 High battery drain

**Reported bugs**

- Freezing and crashing issues
- Incorrect number placement detection
- Daily challenge progress not saving properly

**Requested features**

- Option to pay to remove ads
- More customization options
- Ability to reset puzzles
- Improved performance 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 no in-app purchases.

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

Sudoku ′ is rated higher. Sudoku ′ averages 4.7 out of 5 from 39K ratings, while Sudoku ▦ averages 4.7 from 104K 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 every 3 months, and Sudoku ▦ every 2 weeks. Most recently, Sudoku ′ was updated on November 2, 2026 and Sudoku ▦ on November 2, 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.*