# Sudoku ′ vs ⋆Sudoku

Sudoku ′ and ⋆Sudoku both sit at 4.7 stars, but that hides the real split: 81% of Sudoku ′'s written reviews are positive against 64% 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) and ratings volume (161K vs 39K). On price, rating, ads and in-app purchases 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. Both are backed by a comparable volume of ratings — 39K and 161K respectively. Written reviews are what separate them: 81% of Sudoku ′'s written reviews are positive against 64% of ⋆Sudoku's.

Sudoku ′ ships an update every 3 months, ⋆Sudoku monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Sudoku ′ | ⋆Sudoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (39K ratings)](https://appshunter.io/ios/app/sudoku/id408188960/reviews) | **[4.7 (161K ratings)](https://appshunter.io/ios/app/sudoku/id418044512/reviews)** |
| Number of ratings | 39K | **161K** |
| Positive reviews | **81.3% of reviews** | 63.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 6 MB | 316 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mind The Frog, Inc.](https://appshunter.io/developer/329981779) | [Brainium Studios LLC](https://appshunter.io/developer/300891405) |

## 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/id418044512)

This app offers a classic Sudoku puzzle experience with a modern design and intuitive controls. It features five difficulty levels, a smart hint system that teaches logic, and daily challenges to keep your mind sharp. Track your progress and enjoy a customizable and relaxing gameplay.

**Highlights:** Smart hint system teaches logic, Five difficulty levels, Daily puzzle challenges, Customizable board and themes, Progress tracking and statistics, Auto-fill and auto-check options

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $11.99 | one-time |

**What reviewers like**

- 🚀 Challenging but not too challenging
- 👍 Great for learning advanced techniques
- 👍 Helpful hints that teach strategies
- 👍 Relaxing and soothing game
- 👍 Customizable themes and settings

**What reviewers complain about**

- 🐛 Frequent crashes and glitches
- 🔍 Difficult to see numbers and patterns
- 🔍 Inconsistent difficulty levels
- 🔍 Overly distracting UI elements
- 🔍 Too many intrusive ads

**Reported bugs**

- Puzzle completion status not updating correctly
- Floating number feature not working as expected
- Scores not displaying properly on leaderboard
- Game freezing or crashing on certain devices
- Inability to play music in the background

**Requested features**

- Option to disable auto-check for errors
- Ability to customize number colors and backgrounds
- More granular difficulty settings between Hard and Expert
- Ability to access past daily puzzles
- Family sharing for ad-free version


## 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 161K 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 monthly. Most recently, Sudoku ′ was updated on October 24, 2026 and ⋆Sudoku on October 24, 2026.

---

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