# Chess Sudoku vs Sumaddle

The clearest difference is price: Sumaddle at Free against Chess Sudoku's $4.99. Sumaddle also leads on update cadence (every 3 weeks vs every 2 months) and review sentiment (95% vs 84%). Chess Sudoku's advantage is in-app purchases (none vs 15) and chart position (#196 vs unranked). On rating, ads and device support there is nothing between them.

Sumaddle is free to download; Chess Sudoku costs $4.99 up front. Sumaddle sells 15 one-off in-app purchases. Chess Sudoku asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Chess Sudoku against 4.9 for Sumaddle. That said, the two scores are not equally well evidenced: Sumaddle has 769 ratings behind it against 148, so its average is the more settled of the two. Written reviews are what separate them: 84% of Chess Sudoku's written reviews are positive against 95% of Sumaddle's.

Chess Sudoku ships an update every 2 months, Sumaddle every 3 weeks. Both last shipped on October 20, 2026.

## The numbers

| Metric | Chess Sudoku | Sumaddle |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [4.9 (148 ratings)](https://appshunter.io/ios/app/chess-sudoku/id1500654482/reviews) | **[4.9 (769 ratings)](https://appshunter.io/ios/app/sumaddle/id1552172214/reviews)** |
| Number of ratings | 148 | **769** |
| Positive reviews | 84.4% of reviews | **94.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | **#196** | — |
| Size | 71 MB | 31 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nick Carney](https://appshunter.io/developer/1434235673) | [Jonathan Buchanan](https://appshunter.io/developer/1540556286) |

## What reviewers say

### Chess Sudoku

[App page](https://appshunter.io/ios/app/chess-sudoku/id1500654482)

**Currently charting:** #196 Top Paid · Board (US App Store)

This app combines classic Sudoku with chess-inspired logic. Solve puzzles where digits cannot repeat in rows, columns, or boxes, and also adhere to specific chess piece movement rules for added challenge. Earn stars by solving puzzles to unlock more.

**Highlights:** Knight Sudoku puzzles, King Sudoku puzzles, Queen Sudoku puzzles, 100 crafted puzzles, Human-tested hints, Star-based progression

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

**In-app purchases:** none

**What reviewers like**

- 👍 Great puzzles
- 💡 Innovative chess constraints
- 👍 Intuitive interface
- 👍 Helpful hints
- 👍 Smooth gameplay

**What reviewers complain about**

- 🐛 Queen move puzzles have errors
- 🐛 Puzzles lack variety
- 🐛 Difficulty ratings are odd
- 🐛 App can be boring after finishing puzzles
- 🐛 High power consumption

**Reported bugs**

- Queen move puzzles have errors/contradictions
- Puzzles sometimes have multiple solutions
- Queen puzzles sometimes appear as plain sudoku
- Queen sudoku has errors forcing restraint breaks
- iPad app doesn't allow 180-degree orientation change

**Requested features**

- Larger number buttons
- More puzzle variety
- More puzzles overall
- Cloud saves
- Landscape mode for iPad


### Sumaddle

[App page](https://appshunter.io/ios/app/sumaddle/id1552172214)

This logic puzzle game transforms pencil-and-paper challenges into interactive brain teasers. Fit number combinations to clues using pure logic, with no mental arithmetic required. Enjoy over 150 free puzzles of varying difficulty, with built-in help and offline play.

**Highlights:** Interactive logic puzzles, Number combination fitting, Pure logic solving, Built-in help and mistake correction, Over 150 free puzzles, Offline play, Ad-free experience

**Features:** Family Sharing

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quirky, Pack 5 | $0.99 | one-time |
| Very Difficult Puzzles | $0.99 | one-time |
| Quirky, Pack 1 | $0.99 | one-time |
| Premium 9x9 Puzzles, Pack 1 | $0.99 | one-time |
| Crafty, Pack 1 | $0.99 | one-time |
| Crafty, Pack 2 | $0.99 | one-time |
| Crafty, Pack 3 | $0.99 | one-time |
| Sneaky, Pack 1 | $0.99 | one-time |
| Sneaky, Pack 2 | $0.99 | one-time |
| Sneaky, Pack 3 | $0.99 | one-time |
| Tricky, Pack 1 | $0.99 | one-time |
| Tricky, Pack 2 | $0.99 | one-time |
| Tricky, Pack 3 | $0.99 | one-time |
| Assorted Puzzles | $0.99 | one-time |
| Puzzle Generator | $9.99 | one-time |

**What reviewers like**

- 👍 Fun and challenging game
- 👍 Clean and intuitive interface
- 👍 Helpful hint system
- 🚀 No ads or data collection
- 💡 Unique puzzle concept

**What reviewers complain about**

- 🐛 Automatic hints can be intrusive
- 🐛 Inability to replay completed puzzles
- 💡 Need more free/sample puzzles
- 💡 Difficulty progression could be improved

**Reported bugs**

- Losing progress when minimizing the app
- Inconsistent difficulty ratings

**Requested features**

- Ability to selectively pencil in notes
- More difficult puzzle options
- Synced progress across devices
- Detailed statistics and leaderboard


## Frequently asked questions

### Is Chess Sudoku free?

Chess Sudoku costs $4.99, with no in-app purchases.

### Is Sumaddle free?

Sumaddle is free to download, with in-app purchases available.

### Which has better reviews, Chess Sudoku or Sumaddle?

Sumaddle is rated higher. Chess Sudoku averages 4.9 out of 5 from 148 ratings, while Sumaddle averages 4.9 from 769 ratings.

### Do Chess Sudoku or Sumaddle have ads?

Neither Chess Sudoku nor Sumaddle shows ads.

### Which is updated more often, Chess Sudoku or Sumaddle?

Chess Sudoku ships an update every 2 months, and Sumaddle every 3 weeks. Most recently, Chess Sudoku was updated on October 20, 2026 and Sumaddle on October 20, 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.*