# Fast Shutter vs 21Pix

The clearest difference is in-app purchases: 21Pix at none against Fast Shutter's 1. 21Pix also leads on iOS requirement (16.0 vs 18.0). Fast Shutter's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Fast Shutter sells 1 one-off in-app purchase. 21Pix asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on November 5, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Fast Shutter | 21Pix |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Weekly | Weekly |
| Size | 15 MB | 28 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yi Liu](https://appshunter.io/developer/1887099457) | [Rick Groenewegen](https://appshunter.io/developer/1732495636) |

## What reviewers say

### Fast Shutter

[App page](https://appshunter.io/ios/app/fast-shutter/id6760973124)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FastShutter Premium | $2.99 | one-time |


### 21Pix

[App page](https://appshunter.io/ios/app/21pix-disposable-camera/id6766843145)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fast Shutter free?

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

### Is 21Pix free?

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

### Do Fast Shutter or 21Pix have ads?

21Pix shows ads; Fast Shutter does not.

### Which is updated more often, Fast Shutter or 21Pix?

Fast Shutter ships an update weekly, and 21Pix weekly. Most recently, Fast Shutter was updated on November 5, 2026 and 21Pix on November 9, 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.*