# FMS Admin Controller vs Diamond Tester

The clearest difference is in-app purchases: FMS Admin Controller at none against Diamond Tester's 2. FMS Admin Controller also leads on iOS requirement (12.2 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Diamond Tester sells 2 in-app purchases, starting at $2.99 per 7 days. FMS Admin Controller asks for nothing beyond the download.

FMS Admin Controller ships an update every 10 days, Diamond Tester every 9 days. The most recent releases landed on October 26, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | FMS Admin Controller | Diamond Tester |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (7 ratings)](https://appshunter.io/ios/app/diamond-tester-scan-ai/id6779668069/reviews)** |
| Number of ratings | — | **7** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 9 days** |
| Monetization | — | Freemium |
| Size | 82 MB | 6 MB |
| Requires iOS | **12.2** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [1-More-Thing Group SPRL](https://appshunter.io/developer/1161485530) | [Rudenko Andrii](https://appshunter.io/developer/1858246209) |

## What reviewers say

### FMS Admin Controller

[App page](https://appshunter.io/ios/app/fms-admin-controller/id1385379569)

**Features:** macOS Compatibility

**In-app purchases:** none


### Diamond Tester

[App page](https://appshunter.io/ios/app/diamond-tester-scan-ai/id6779668069)

Analyze diamonds and gemstones instantly with AI-powered image recognition. Get detailed insights into characteristics, quality, and estimated market position. Ideal for enthusiasts, collectors, and buyers seeking quick, informative assessments.

**Highlights:** AI Diamond Analysis, Authenticity Assessment, Quality Overview (4Cs), Confidence Score, Value Snapshot, AI Gem Chat

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Diamond Tester Premium | $2.99 | per 7 days |
| Diamond Tester Premium | $19.99 | per year |


## Frequently asked questions

### Is FMS Admin Controller free?

FMS Admin Controller is free to download, with no in-app purchases.

### Is Diamond Tester free?

Diamond Tester is free to download, with in-app purchases available.

### Do FMS Admin Controller or Diamond Tester have ads?

Neither FMS Admin Controller nor Diamond Tester shows ads.

### Which is updated more often, FMS Admin Controller or Diamond Tester?

FMS Admin Controller ships an update every 10 days, and Diamond Tester every 9 days. Most recently, FMS Admin Controller was updated on October 26, 2026 and Diamond Tester on October 31, 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.*