# 21 vs Shrinkle Puzzle

21 and Shrinkle Puzzle are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 21 | Shrinkle Puzzle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 days | — |
| Size | 39 MB | 6 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Chee Hoong Khor](https://appshunter.io/developer/1880679655) | [田智 谢](https://appshunter.io/developer/1876095150) |

## What reviewers say

### 21

[App page](https://appshunter.io/ios/app/21-twenty-one/id6759793279)

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

**In-app purchases:** none


### Shrinkle Puzzle

[App page](https://appshunter.io/ios/app/shrinkle-puzzle/id6777022768)

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

**In-app purchases:** none


## Frequently asked questions

### Is 21 free?

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

### Is Shrinkle Puzzle free?

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

### Do 21 or Shrinkle Puzzle have ads?

Both 21 and Shrinkle Puzzle show ads.

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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.*