# Sudoku ′ vs Sudoku ∙

The clearest difference is ratings volume: Sudoku ′ at 39K against Sudoku ∙'s 1.4K. On price, rating, review sentiment and update cadence 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 4.7 for Sudoku ∙. That said, the two scores are not equally well evidenced: Sudoku ′ has 39K ratings behind it against 1.4K, so its average is the more settled of the two. Written reviews are what separate them: 81% of Sudoku ′'s written reviews are positive against 79% of Sudoku ∙'s.

Sudoku ′ ships an update every 3 months, Sudoku ∙ every 2 months. The most recent releases landed on October 27, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Sudoku ′ | Sudoku ∙ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (39K ratings)](https://appshunter.io/ios/app/sudoku/id408188960/reviews) | **[4.7 (1.4K ratings)](https://appshunter.io/ios/app/sudoku/id727577974/reviews)** |
| Number of ratings | **39K** | 1.4K |
| Positive reviews | **81.3% of reviews** | 79.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 6 MB | 113 MB |
| Requires iOS | **12.4** | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [Mind The Frog, Inc.](https://appshunter.io/developer/329981779) | [Solitaire Games Studio](https://appshunter.io/developer/1391057535) |

## 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/id727577974)

Engage in a classic logic puzzle with multiple difficulty levels, from beginner to expert. Features include automatic saving, customizable options, and a beginner tutorial. Enjoy a well-crafted gameplay experience designed for maximum enjoyment on your mobile device.

**Highlights:** Multiple difficulty levels, Beginner tutorial, Automatic game saving, Customizable in-game options, Left or right-handed play

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove advertising | $2.99 | one-time |

**What reviewers like**

- 👍 Easy to use interface
- 💡 Separate note-taking feature
- 🚀 Responsive gameplay
- ⭐ Challenging difficulty levels

**What reviewers complain about**

- 🔍 Small font size
- 💸 Excessive ads
- 🐛 Crashes and freezes
- 🔁 Inability to save progress

**Reported bugs**

- Incorrect puzzle solutions
- Inconsistent scoring and progress tracking
- Ads that disrupt gameplay

**Requested features**

- Option to disable ads
- Larger grid size
- Ability to review completed puzzles
- Customizable themes and appearances


## 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 4.7 from 1.4K 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 months. Most recently, Sudoku ′ was updated on October 27, 2026 and Sudoku ∙ on October 26, 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.*