Comparison

Diamond Tester vs SnapGlucose

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

Head to head
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

About

SnapGlucose

Features
Read full description

SnapGlucose is a simple iOS app for logging blood glucose numbers from camera. Just take a photo, confirm the number, and keep a clear record over time. SnapGlucose helps you record and review glucose readings with minimal effort. Instead of typing numbers every time, you can take a photo and let the app recognize the number on your device. You stay in control — every value is always confirmed or edited by you. The app focuses on clarity, speed, and privacy. Just clean records you can review anytime. Key Features • Snap a photo to log glucose numbers quickly • On-device recognition — images are not uploaded • Manual entry with large, easy-to-read keypad • Simple notes for context (optional) • Clear history list and line chart views • Supports mmol/L and mg/dL • Export your data when needed SnapGlucose is designed to be easy to use, including for older users, with large text, high contrast, and a distraction-free interface. Important Notice SnapGlucose is intended for logging user-provided glucose readings only. It does not provide medical advice, diagnosis, treatment, or health recommendations, it for record keeping only. It does not connect to medical devices. Always consult qualified professionals for medical guidance.

Screenshots

Diamond Tester4 screens
SnapGlucose4 screens

Verdict

The call

The clearest difference is in-app purchases: SnapGlucose at none against Diamond Tester's 2. SnapGlucose also leads on update cadence (weekly vs fortnightly). On price, ads, device support and iOS requirement 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. SnapGlucose asks for nothing beyond the download.

UpkeepUpdate frequency

Diamond Tester ships an update fortnightly, SnapGlucose weekly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Diamond Tester versus SnapGlucose: the parameters behind the verdict, then further details
ParameterDiamond TesterSnapGlucose
PriceFreeFree
Rating4.5 (65 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings65 — better—
Update frequencyFortnightlyWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.6 — better18.6
Further details — not scored
Size12 MB27 MB
Age rating4+4+
DeveloperNicolas Gustavo Melian芬 江

In-app purchases

2 purchases

Diamond Tester

Subscriptions2
  • Weekly Plan3 Days trial$7.997 Days
  • Yearly Plan$24.991 Year
None

SnapGlucose

No in-app purchases

Questions

Is Diamond Tester free?
Diamond Tester is free to download, with in-app purchases available.
Is SnapGlucose free?
SnapGlucose is free to download, with no in-app purchases.
Do Diamond Tester or SnapGlucose have ads?
Neither Diamond Tester nor SnapGlucose shows ads.
Which is updated more often, Diamond Tester or SnapGlucose?
Diamond Tester ships an update fortnightly, and SnapGlucose weekly. Most recently, Diamond Tester was updated on November 5, 2026 and SnapGlucose on October 31, 2026.

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