# Blackhill Admin vs Diamond Tester

The clearest difference is in-app purchases: Blackhill Admin at none against Diamond Tester's 2. Blackhill Admin also leads on iOS requirement (13.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Diamond Tester sells 2 in-app purchases, starting at $7.99 per 7 days. Blackhill Admin asks for nothing beyond the download.

## The numbers

| Metric | Blackhill Admin | Diamond Tester |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (65 ratings)](https://appshunter.io/ios/app/diamond-tester/id6754944343/reviews)** |
| Number of ratings | — | **65** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Monetization | — | Free with in-app purchases |
| Size | 20 MB | 12 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Linked Heart Technology Limited](https://appshunter.io/developer/1628264367) | [Nicolas Gustavo Melian](https://appshunter.io/developer/1777868675) |

## What reviewers say

### Blackhill Admin

[App page](https://appshunter.io/ios/app/blackhill-admin/id6451191760)

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

**In-app purchases:** none


### Diamond Tester

[App page](https://appshunter.io/ios/app/diamond-tester/id6754944343)

Identify real diamonds, gems, and crystals with a photo. Get information on authenticity and estimated value. Organize your findings in a personal collection.

**Highlights:** Photo-based diamond identification, Authenticity verification, Estimated diamond value, Gem and crystal analysis, Personal collection organizer

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $7.99 | per 7 days |
| Yearly Plan | $24.99 | per year |


## Frequently asked questions

### Is Blackhill Admin free?

Blackhill Admin 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 Blackhill Admin or Diamond Tester have ads?

Neither Blackhill Admin nor Diamond Tester shows ads.

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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.*