# Audit 4 vs Palstat CAQ

The clearest difference is iOS requirement: Palstat CAQ at 8.0 against Audit 4's 12.0. 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.

Audit 4 ships an update every 7 months, Palstat CAQ every 6 months. The most recent releases landed on September 9, 2026 and May 15, 2026 respectively.

## The numbers

| Metric | Audit 4 | Palstat CAQ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 months** |
| Size | 17 MB | 43 MB |
| Requires iOS | 12.0 | **8.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Audit4 Compliance Ltd](https://appshunter.io/developer/1211717324) | [PALSTAT s.r.o.](https://appshunter.io/developer/1559709933) |

## 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


### Palstat CAQ

[App page](https://appshunter.io/ios/app/palstat-caq/id1559709931)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Audit 4 free?

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

### Is Palstat CAQ free?

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

### Do Audit 4 or Palstat CAQ have ads?

Neither Audit 4 nor Palstat CAQ shows ads.

### Which is updated more often, Audit 4 or Palstat CAQ?

Audit 4 ships an update every 7 months, and Palstat CAQ every 6 months. Most recently, Audit 4 was updated on September 9, 2026 and Palstat CAQ on May 15, 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.*