# Acetabular Diagnosis Tool vs AMS

The clearest difference is update cadence: AMS at every 4 months against Acetabular Diagnosis Tool's every 11 months. AMS also leads on iOS requirement (8.2 vs 12.0). 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.

Acetabular Diagnosis Tool ships an update every 11 months, AMS every 4 months. Both last shipped on October 26, 2026.

## The numbers

| Metric | Acetabular Diagnosis Tool | AMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 4 months** |
| Size | 30 MB | 3 MB |
| Requires iOS | 12.0 | **8.2** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Groupe Hospitalier Paris Saint-Joseph](https://appshunter.io/developer/1085526444) | [Fahd Aldobian](https://appshunter.io/developer/873471193) |

## What reviewers say

### Acetabular Diagnosis Tool

[App page](https://appshunter.io/ios/app/acetabular-diagnosis-tool/id1122951278)

**Features:** macOS Compatibility

**In-app purchases:** none


### AMS

[App page](https://appshunter.io/ios/app/ams/id1128024037)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Acetabular Diagnosis Tool free?

Acetabular Diagnosis Tool is free to download, with no in-app purchases.

### Is AMS free?

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

### Do Acetabular Diagnosis Tool or AMS have ads?

Neither Acetabular Diagnosis Tool nor AMS shows ads.

### Which is updated more often, Acetabular Diagnosis Tool or AMS?

Acetabular Diagnosis Tool ships an update every 11 months, and AMS every 4 months. Most recently, Acetabular Diagnosis Tool was updated on October 26, 2026 and AMS on October 26, 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.*