# Sherlock Holmes Detect vs UPMR Tools

The clearest difference is update cadence: Sherlock Holmes Detect at monthly against UPMR Tools's every 3 months. UPMR Tools's advantage is iOS requirement (12.0 vs 14.0). 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.

Sherlock Holmes Detect ships an update monthly, UPMR Tools every 3 months. The most recent releases landed on September 24, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Sherlock Holmes Detect | UPMR Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (7 ratings)](https://appshunter.io/ios/app/sherlock-holmes-detect/id1617998548/reviews)** | — |
| Number of ratings | **7** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free | — |
| Size | 29 MB | 27 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mejix](https://appshunter.io/developer/1524792113) | [United Precious Metal Refining, Inc.](https://appshunter.io/developer/1784671872) |

## 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


### UPMR Tools

[App page](https://appshunter.io/ios/app/upmr-tools/id6739284967)

**In-app purchases:** none


## Frequently asked questions

### Is Sherlock Holmes Detect free?

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

### Is UPMR Tools free?

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

### Do Sherlock Holmes Detect or UPMR Tools have ads?

Neither Sherlock Holmes Detect nor UPMR Tools shows ads.

### Which is updated more often, Sherlock Holmes Detect or UPMR Tools?

Sherlock Holmes Detect ships an update monthly, and UPMR Tools every 3 months. Most recently, Sherlock Holmes Detect was updated on September 24, 2026 and UPMR Tools on September 5, 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.*