# Sherlock Holmes Detect vs Diamond Tester

The clearest difference is rating: Diamond Tester at 4.5 against Sherlock Holmes Detect's 3.7. Diamond Tester also leads on ratings volume (65 vs 7). Sherlock Holmes Detect's advantage is in-app purchases (none vs 2) and iOS requirement (14.0 vs 17.6). 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 $7.99 per 7 days. Sherlock Holmes Detect asks for nothing beyond the download.

Diamond Tester holds the better App Store score, 4.5 against 3.7. That said, the two scores are not equally well evidenced: Diamond Tester has 65 ratings behind it against 7, so its average is the more settled of the two.

Sherlock Holmes Detect ships an update monthly, Diamond Tester fortnightly. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Sherlock Holmes Detect | Diamond Tester |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (7 ratings)](https://appshunter.io/ios/app/sherlock-holmes-detect/id1617998548/reviews) | **[4.5 (65 ratings)](https://appshunter.io/ios/app/diamond-tester/id6754944343/reviews)** |
| Number of ratings | 7 | **65** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 29 MB | 12 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mejix](https://appshunter.io/developer/1524792113) | [Nicolas Gustavo Melian](https://appshunter.io/developer/1777868675) |

## What reviewers say

### Sherlock Holmes Detect

[App page](https://appshunter.io/ios/app/sherlock-holmes-detect/id1617998548)

This application connects to a specialized SH box to analyze diamond images. It uses various illuminations to capture photos and distinguish between natural and lab-grown diamonds.

**Highlights:** Connects to SH box, Bluetooth/cable connectivity, Diamond image analysis, Distinguishes natural vs. lab-grown diamonds, Multiple illumination settings

**Features:** 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 Sherlock Holmes Detect free?

Sherlock Holmes Detect is free to download, with no in-app purchases.

### Is Diamond Tester free?

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

### Which has better reviews, Sherlock Holmes Detect or Diamond Tester?

Diamond Tester is rated higher. Sherlock Holmes Detect averages 3.7 out of 5 from 7 ratings, while Diamond Tester averages 4.5 from 65 ratings.

### Do Sherlock Holmes Detect or Diamond Tester have ads?

Neither Sherlock Holmes Detect nor Diamond Tester shows ads.

### Which is updated more often, Sherlock Holmes Detect or Diamond Tester?

Sherlock Holmes Detect ships an update monthly, and Diamond Tester fortnightly. Most recently, Sherlock Holmes Detect was updated on October 24, 2026 and Diamond Tester on October 30, 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.*