# Audit 4 vs Fish Scale

The clearest difference is iOS requirement: Audit 4 at 12.0 against Fish Scale's 14.2. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 7 months. The most recent releases landed on October 12, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Audit 4 | Fish Scale |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | Every 7 months |
| Size | 17 MB | 20 MB |
| Requires iOS | **12.0** | 14.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Audit4 Compliance Ltd](https://appshunter.io/developer/1211717324) | [Zapanapp (Pty) Ltd](https://appshunter.io/developer/1735675562) |

## What reviewers say

### Audit 4

[App page](https://appshunter.io/ios/app/audit-4/id1211717325)

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

**In-app purchases:** none


### Fish Scale

[App page](https://appshunter.io/ios/app/fish-scale/id6748342828)

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

**In-app purchases:** none


## Frequently asked questions

### Is Audit 4 free?

Audit 4 is free to download, with no in-app purchases.

### Is Fish Scale free?

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

### Do Audit 4 or Fish Scale have ads?

Neither Audit 4 nor Fish Scale shows ads.

### Which is updated more often, Audit 4 or Fish Scale?

Audit 4 ships an update every 7 months, and Fish Scale every 7 months. Most recently, Audit 4 was updated on October 12, 2026 and Fish Scale on October 1, 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.*