Comparison

BannerTrail 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

BannerTrail

Features
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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

BannerTrail1 screens
Diamond Tester4 screens

Verdict

The call

The clearest difference is in-app purchases: BannerTrail at none against Diamond Tester's 2. BannerTrail also leads on update cadence (daily vs fortnightly) and iOS requirement (15.1 vs 17.6). On price, 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. BannerTrail asks for nothing beyond the download.

UpkeepUpdate frequency

BannerTrail ships an update daily, Diamond Tester fortnightly. The most recent releases landed on October 28, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
BannerTrail versus Diamond Tester: the parameters behind the verdict, then further details
ParameterBannerTrailDiamond Tester
PriceFreeFree
Rating—4.5 (65 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—65 — better
Update frequencyDaily — betterFortnightly
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.6
Further details — not scored
Size16 MB12 MB
Age rating4+4+
DeveloperRonald Oscar LankfordNicolas Gustavo Melian

In-app purchases

None

BannerTrail

No in-app purchases

2 purchases

Diamond Tester

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

Questions

Is BannerTrail free?
BannerTrail is free to download, with no in-app purchases.
Is Diamond Tester free?
Diamond Tester is free to download, with in-app purchases available.
Do BannerTrail or Diamond Tester have ads?
Neither BannerTrail nor Diamond Tester shows ads.
Which is updated more often, BannerTrail or Diamond Tester?
BannerTrail ships an update daily, and Diamond Tester fortnightly. Most recently, BannerTrail was updated on October 28, 2026 and Diamond Tester on October 30, 2026.

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