Comparison

Sherlock Holmes Detect vs Diamond Tester

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Sherlock Holmes Detect

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
Read full description

This app connects your phone to an SH box (purchased separately). Using Bluetooth or cable, the App gives a series of commands to the box. It takes pictures of diamonds and diamond jewelry under different illuminations and analyzes the pictures. The end result enables the user to distinguish between natural diamonds and lab-grown diamonds.

About

Diamond Tester

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
Read full description

Diamond Tester helps you explore and learn about diamonds, gems, and crystals through visual reference. Take a photo of any stone in your collection to receive educational information about its visual characteristics and properties. KEY FEATURES - Visual identification reference for gemstones and crystals - Educational information about the 4 C's (Cut, Clarity, Color, Carat) - Value range estimates based on visible characteristics - Personal collection management to organize your scans - Learn section with gemology basics and stone properties HOW TO USE For best results, place your stone in a clean, well-lit area and take a clear photo. The app will provide visual reference information and educational content related to the characteristics it identifies. PERFECT FOR - Jewelry enthusiasts learning about gemstones - Collectors organizing their stone collections - Students studying gemology basics - Anyone curious about the gems they own - Quick reference for visual stone characteristics YOUR COLLECTION Build and organize your personal gemstone library. Save scans, add notes, and track your collection over time. All data stays on your device. IMPORTANT INFORMATION This app is an educational reference tool. The information provided is for general learning purposes and visual identification reference only. It is NOT a substitute for professional gemological testing or appraisal. For authentication, valuation, or any decisions involving significant financial value, always consult a certified gemologist (GIA, AGS, or equivalent) who can perform proper testing with calibrated equipment. The app cannot definitively verify the authenticity, grade, or precise value of diamonds, gemstones, or crystals. Visual identification has inherent limitations and should be used as a starting point for learning, not as final verification. ____________ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://meliann.notion.site/Privacy-Policy-For-Diamond-Tester-2a3476f8f041805cb09cea52c0f092d1?pvs=73

Screenshots

Sherlock Holmes Detect4 screens
Diamond Tester4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard5 real differences · 5 level
Sherlock Holmes Detect versus Diamond Tester: the parameters behind the verdict, then further details
ParameterSherlock Holmes DetectDiamond Tester
PriceFreeFree
Rating3.7 (7 ratings)4.5 (65 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings765 — better
Update frequencyMonthlyFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS14.0 — better17.6
Further details — not scored
Size29 MB12 MB
Age rating4+4+
DeveloperMejixNicolas Gustavo Melian

Customer experience

Sherlock Holmes Detect

All ratings7 ratings
Positive57.1%
Neutral14.3%
Negative28.6%

Diamond Tester

All ratings64 ratings
Positive85.9%
Neutral1.6%
Negative12.5%
Written reviews3 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Sherlock Holmes Detect

No in-app purchases

2 purchases

Diamond Tester

Subscriptions2
  • Weekly Plan3 Days trial$7.997 Days
  • Yearly Plan$24.991 Year

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.

Other comparisons