# ▻Sudoku + vs Sudoku ′

The clearest difference is price: Sudoku ′ at Free against ▻Sudoku +'s $4.99. Sudoku ′ also leads on update cadence (every 3 months vs every 7 months). ▻Sudoku +'s advantage is in-app purchases (none vs 1) and chart position (#33 vs unranked). On rating, review sentiment, ratings volume and ads there is nothing between them.

Sudoku ′ is free to download; ▻Sudoku + costs $4.99 up front. 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 — 4.8 for ▻Sudoku + against 4.7 for Sudoku ′. Both are backed by a comparable volume of ratings — 15K and 39K respectively. Written reviews are what separate them: 89% of ▻Sudoku +'s written reviews are positive against 81% of Sudoku ′'s.

▻Sudoku + ships an update every 7 months, Sudoku ′ every 3 months. Both last shipped on October 28, 2026.

## The numbers

| Metric | ▻Sudoku + | Sudoku ′ |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.8 (15K ratings)](https://appshunter.io/ios/app/sudoku-plus/id372283316/reviews)** | [4.7 (39K ratings)](https://appshunter.io/ios/app/sudoku/id408188960/reviews) |
| Number of ratings | 15K | **39K** |
| Positive reviews | **88.8% of reviews** | 81.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 7 months | **Every 3 months** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Best chart rank | **#33** | — |
| Size | 73 MB | 6 MB |
| Requires iOS | **12.0** | 12.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [PeopleFun CG, LLC](https://appshunter.io/developer/330688693) | [Mind The Frog, Inc.](https://appshunter.io/developer/329981779) |

## What reviewers say

### ▻Sudoku +

[App page](https://appshunter.io/ios/app/sudoku-plus/id372283316)

**Currently charting:** #33 Top Paid · Board, #59 Top Paid · Puzzle (US App Store)

Experience Sudoku with a unique point system, runs tracking, and online leaderboards. Enjoy thousands of free puzzles with adjustable difficulty and stunning graphics. Compete with friends and players worldwide in this evolved take on the classic game.

**Highlights:** Smart point system, Online leaderboards, Runs tracking, Thousands of free puzzles, Selectable difficulty levels, Customizable tile/board looks

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💡 No ads
- 👍 Intuitive interface
- 🧠 Mentally challenging
- 🕰️ Ability to track progress and high scores
- 🎨 Variety of themes and backgrounds

**What reviewers complain about**

- 🐛 Inconsistent scoring system
- 🐛 Occasional bugs and glitches
- 🔄 Difficulty in disabling screen rotation
- 👀 Small number tiles can be hard to select accurately

**Reported bugs**

- Numbers disappearing from the selection bar
- Incorrect answers being registered as mistakes
- Rotation lock settings not persisting

**Requested features**

- Auto-fill pencil marks option
- More advanced difficulty levels
- Ability to export/import game data across devices
- Option to disable the 3-mistake limit


### 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 + costs $4.99, with no in-app purchases.

### 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 4.8 out of 5 from 15K 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 every 7 months, and Sudoku ′ every 3 months. Most recently, ▻Sudoku + was updated on October 28, 2026 and Sudoku ′ on October 28, 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.*