# Logic Square vs Number Chain

The clearest difference is in-app purchases: Logic Square at none against Number Chain's 7. Logic Square also leads on review sentiment (91% vs 80%). Number Chain's advantage is update cadence (every 4 days vs monthly) and iOS requirement (11.0 vs 13.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Number Chain sells 7 one-off in-app purchases. Logic Square asks for nothing beyond the download.

Logic Square holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 215 and 624 respectively. Written reviews point the same way: 91% of Logic Square's written reviews are positive against 80% of Number Chain's.

Logic Square ships an update monthly, Number Chain every 4 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Logic Square | Number Chain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (215 ratings)](https://appshunter.io/ios/app/logic-square-nonogram/id432045052/reviews)** | [4.7 (624 ratings)](https://appshunter.io/ios/app/number-chain-logic-puzzle/id1348153114/reviews) |
| Number of ratings | 215 | **624** |
| Positive reviews | **91.4% of reviews** | 80.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 79 MB | 60 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JaeKwan Jung](https://appshunter.io/developer/432045055) | [Ecapyc Inc.](https://appshunter.io/developer/459418445) |

## What reviewers say

### Logic Square

[App page](https://appshunter.io/ios/app/logic-square-nonogram/id432045052)

This is a free puzzle game where you reveal hidden images by filling in blocks based on number clues. It offers thousands of puzzles, daily new challenges, and online multiplayer modes. Learn the ropes with tutorials and track your progress against others.

**Highlights:** Thousands of puzzles, Daily new puzzles, Online match play, Tutorials for beginners, Leaderboard system, Online synchronization, Color puzzles

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

**In-app purchases:** none


### Number Chain

[App page](https://appshunter.io/ios/app/number-chain-logic-puzzle/id1348153114)

This brain training game challenges you to connect numbers in sequential order, combining elements of Sudoku and Hidato. Enjoy endless free puzzles with varying difficulties, playable offline and featuring customizable themes. Improve your memory and concentration with this engaging logic puzzle.

**Highlights:** Connect numbers 1 to max, Horizontal, vertical, diagonal connections, Endless free puzzles, Multiple difficulty levels, Night mode, Offline play

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 Hints | $0.99 | one-time |
| 5 Keys | $0.99 | one-time |
| Remove Ads | $4.99 | one-time |
| 30 Hints | $4.99 | one-time |
| 30 Keys | $4.99 | one-time |
| 70 Hints | $9.99 | one-time |
| 70 Keys | $9.99 | one-time |

**What reviewers like**

- 🧠 Excellent brain training and mental exercise
- 👍 Intuitive and easy-to-learn gameplay
- 🎮 Highly addictive and engaging puzzle mechanics
- ⏱️ Perfect for quick time-filling sessions
- 🆓 Works offline without data requirements

**What reviewers complain about**

- 🔥 Excessive heat generation on devices
- 📢 Too many advertisements throughout gameplay
- ⏰ Time limit pressure reduces enjoyment
- 🎵 Interferes with background music playback
- 👁️ Small text causes eye strain

**Reported bugs**

- Tutorial level 15 doesn't progress
- Ad-removal purchase not working or expiring unexpectedly
- Ad close button unresponsive
- App crashes when sharing completion screenshots
- Hint counter displays 0 despite watching ads

**Requested features**

- Higher difficulty levels beyond Hardcore mode
- Undo/rewind button for mistakes
- Save game functionality
- Skip tutorial option
- Text size adjustment/zoom feature


## Frequently asked questions

### Is Logic Square free?

Logic Square is free to download, with no in-app purchases.

### Is Number Chain free?

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

### Which has better reviews, Logic Square or Number Chain?

Logic Square is rated higher. Logic Square averages 4.9 out of 5 from 215 ratings, while Number Chain averages 4.7 from 624 ratings.

### Do Logic Square or Number Chain have ads?

Both Logic Square and Number Chain show ads.

### Which is updated more often, Logic Square or Number Chain?

Logic Square ships an update monthly, and Number Chain every 4 days. Most recently, Logic Square was updated on October 26, 2026 and Number Chain on October 24, 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.*