# PSA vs AMS Go

The clearest difference is update cadence: AMS Go at every 5 days against PSA's every 3 months. PSA's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

PSA ships an update every 3 months, AMS Go every 5 days. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PSA | AMS Go |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Size | 20 MB | 99 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Certado GmbH](https://appshunter.io/developer/1588853102) | [AMS Cockpit GmbH](https://appshunter.io/developer/1847828036) |

## What reviewers say

### PSA

[App page](https://appshunter.io/ios/app/psa-audit/id1664063797)

**In-app purchases:** none


### AMS Go

[App page](https://appshunter.io/ios/app/ams-go/id6754315457)

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

**In-app purchases:** none


## Frequently asked questions

### Is PSA free?

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

### Is AMS Go free?

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

### Do PSA or AMS Go have ads?

Neither PSA nor AMS Go shows ads.

### Which is updated more often, PSA or AMS Go?

PSA ships an update every 3 months, and AMS Go every 5 days. Most recently, PSA was updated on October 21, 2026 and AMS Go on October 25, 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.*