Comparison

Diamond Tester vs ScanAI

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

ScanAI

Features
Read full description

ScanAI turns your iPhone into a professional document scanner — fast, private, and precise. SCAN ANYTHING • Documents, receipts, books, contracts • ID Cards, Passports, Business Cards • Auto-detect edges with golden overlay guide • A4, A5, A3, Letter, Legal, and more formats OCR — SCAN TO TEXT • Extract text from any scanned image • Export as TXT, DOCX (Word), or copy to clipboard • Works offline, on-device processing SIGN & ANNOTATE • Add handwritten signatures (Apple Pencil support) • Highlight, redact sensitive information • Annotation tools built right in EXPORT EVERYWHERE • PDF, JPEG, DOCX, TXT formats • Share via AirDrop, Mail, Files, iCloud Drive • Multi-page documents in a single file SECURE BY DESIGN • Face ID & Touch ID biometric lock • Your documents never leave your device without permission • On-device processing for sensitive scans QR & BARCODE • Instant QR code reader built in • Works with all major barcode formats DocVault Premium unlocks: - Unlimited document storage - OCR text recognition - Maximum photo quality - Ad-free experience Available in English, German, Spanish, French, Polish, Ukrainian. Terms of Use (EULA): https://scanner-pdf-dd8c3.web.app/terms Privacy Policy: https://scanner-pdf-dd8c3.web.app/privacy

Screenshots

Diamond Tester4 screens
ScanAI4 screens

Verdict

The call

The clearest difference is ads: Diamond Tester at none against ScanAI's shown. Diamond Tester also leads on update cadence (fortnightly vs every 3 months). On price, in-app purchases, 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 and ScanAI sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Diamond Tester ships an update fortnightly, ScanAI every 3 months. The most recent releases landed on November 5, 2026 and November 1, 2026 respectively.

Scorecard2 real differences · 8 level
Diamond Tester versus ScanAI: the parameters behind the verdict, then further details
ParameterDiamond TesterScanAI
PriceFreeFree
Rating4.5 (65 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings65 — better—
Update frequencyFortnightly — betterEvery 3 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.6 — better18.0
Further details — not scored
Size12 MB19 MB
Age rating4+4+
DeveloperNicolas Gustavo MelianArtem Kutukov

In-app purchases

2 purchases

Diamond Tester

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

ScanAI

Subscriptions2
  • Weekly Premium3 Days trial$6.997 Days
  • Annual Premium$59.991 Year
One-time1
  • Premium Lifetime$49.99

Questions

Is Diamond Tester free?
Diamond Tester is free to download, with in-app purchases available.
Is ScanAI free?
ScanAI is free to download, with in-app purchases available.
Do Diamond Tester or ScanAI have ads?
ScanAI shows ads; Diamond Tester does not.
Which is updated more often, Diamond Tester or ScanAI?
Diamond Tester ships an update fortnightly, and ScanAI every 3 months. Most recently, Diamond Tester was updated on November 5, 2026 and ScanAI on November 1, 2026.

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