# Sudoku ′ vs Sudoku ◆

The clearest difference is update cadence: Sudoku ′ at every 3 months against Sudoku ◆'s every 6 months. Sudoku ′ also leads on iOS requirement (12.4 vs 15.0). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Sudoku ′ sells 1 one-off in-app purchase 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 4.6 for Sudoku ◆. Both are backed by a comparable volume of ratings — 39K and 18K respectively. Written reviews are what separate them: 81% of Sudoku ′'s written reviews are positive against 75% of Sudoku ◆'s.

Sudoku ′ ships an update every 3 months, Sudoku ◆ every 6 months. Both last shipped on October 21, 2026.

## The numbers

| Metric | Sudoku ′ | Sudoku ◆ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (39K ratings)](https://appshunter.io/ios/app/sudoku/id408188960/reviews)** | [4.6 (18K ratings)](https://appshunter.io/ios/app/sudoku/id717754939/reviews) |
| Number of ratings | **39K** | 18K |
| Positive reviews | **81.3% of reviews** | 75.2% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 months** | Every 6 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 6 MB | 114 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Mind The Frog, Inc.](https://appshunter.io/developer/329981779) | [Do More Mobile, LLC.](https://appshunter.io/developer/318729104) |

## 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/id717754939)

Engage in a classic logic puzzle experience with an endless supply of Sudoku challenges. This app offers a sleek, modern interface designed for relaxing brain exercise, allowing you to hone your deduction skills and improve concentration. Track your progress, earn stars, and enjoy customizable gameplay across all your devices.

**Highlights:** Endless Sudoku puzzles, Customizable board and colors, Hints, notes, and auto-complete, Difficulty levels: easy to expert, Progress tracking and stats, HD retina graphics for iPhone/iPad

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sudoku Premium | $19.99 | one-time |

**What reviewers like**

- 💎 Colorful and customizable design
- 📊 Variety of difficulty levels
- 🎨 Helpful color-coding of numbers
- 🔍 Useful features like note-taking and mistake highlighting
- 🧠 Helps keep the mind active

**What reviewers complain about**

- 💰 Expensive in-app purchase to remove ads
- 🔍 Intrusive and frequent ads
- 🔋 Causes device overheating and high battery drain
- 🐛 Crashes and issues with restoring purchases
- 🤖 Automatic number completion can make the game too easy

**Reported bugs**

- Puzzle solutions not always unique
- Ads redirecting to App Store without user interaction
- Issues with app crashing or not loading properly

**Requested features**

- Landscape mode for iPad
- Ability to change number color in notes
- Option to disable automatic number completion
- Reduce frequency and intrusiveness of ads


## 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 39K ratings, while Sudoku ◆ averages 4.6 from 18K 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 6 months. Most recently, Sudoku ′ was updated on October 21, 2026 and Sudoku ◆ on October 21, 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.*