# 15 Puzzle Polygon vs SmartFour

The clearest difference is rating: 15 Puzzle Polygon at 5.0 against SmartFour's 4.0. 15 Puzzle Polygon also leads on update cadence (every 6 weeks vs every 3 months). SmartFour's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume and device support there is nothing between them.

Both are free to download. 15 Puzzle Polygon sells 1 one-off in-app purchase. SmartFour asks for nothing beyond the download.

15 Puzzle Polygon holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 3 and 4 respectively.

15 Puzzle Polygon ships an update every 6 weeks, SmartFour every 3 months. The most recent releases landed on October 2, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 15 Puzzle Polygon | SmartFour |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/15-puzzle-polygon/id1493750827/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/smartfour/id1524139564/reviews) |
| Number of ratings | 3 | **4** |
| Positive reviews | — | 57.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 19 MB | 151 MB |
| Requires iOS | 15.6 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [振华 许](https://appshunter.io/developer/1437340417) | [FS GIIKER TECHNOLOGY CO.,LTD](https://appshunter.io/developer/1228471304) |

## What reviewers say

### 15 Puzzle Polygon

[App page](https://appshunter.io/ios/app/15-puzzle-polygon/id1493750827)

Engage your mind with a variety of logic and puzzle games. Explore unique variations of classic puzzles like the 15-puzzle, tile matching, and color-based challenges. Offers numerous levels and modes to test your thinking skills.

**Highlights:** Extended 15-puzzle variations, Hexagonal and triangular boards, Tile matching with various shapes, Color-based logic puzzles, Maze and rotating puzzles, Nonogram and number puzzles

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $2.99 | one-time |


### SmartFour

[App page](https://appshunter.io/ios/app/smartfour/id1524139564)

This AI-powered 3D board game requires connected hardware to play. Engage in head-to-head matches, challenge an adaptive AI, or compete with players globally. Track your progress with advanced statistics and replays.

**Highlights:** AI training, Online competition, Global leaderboard, Advanced stats, Replay functionality

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 15 Puzzle Polygon free?

15 Puzzle Polygon is free to download, with in-app purchases available.

### Is SmartFour free?

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

### Which has better reviews, 15 Puzzle Polygon or SmartFour?

15 Puzzle Polygon is rated higher. 15 Puzzle Polygon averages 5.0 out of 5 from 3 ratings, while SmartFour averages 4.0 from 4 ratings.

### Do 15 Puzzle Polygon or SmartFour have ads?

15 Puzzle Polygon shows ads; SmartFour does not.

### Which is updated more often, 15 Puzzle Polygon or SmartFour?

15 Puzzle Polygon ships an update every 6 weeks, and SmartFour every 3 months. Most recently, 15 Puzzle Polygon was updated on October 2, 2026 and SmartFour on October 16, 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.*