# Diamond Identifier Rock Tester — Crystal Finder \| Stone Scanner > AI-powered gemstone recognition and collection management app. (iPhone/iPad app by Vi Thuy Linh.) - Source: https://appshunter.io/ios/app/diamond-identifier-rock-tester/id6478292057 (this page in markdown: same URL + `.md`) - Developer: [Vi Thuy Linh](https://appshunter.io/developer/1718912145) - Category: Education, Utilities - Price: Free with in-app purchases - Rating: 4.46/5 from 340 App Store ratings · 33 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 111 MB - Languages: Arabic, Bulgarian, Croatian, Czech, Danish, Dutch, English, Estonian, Finnish, French and 26 more - Released: 2024-03-19 - Data updated: 2026-06-10 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/diamond-identifier-rock-tester/id6478292057/reviews.md ## What is Diamond Identifier Rock Tester? Welcome, dear user! This app is your indispensable assistant for researching, recognizing and collecting gemstones. From beginner to experienced collector, we offer an exciting journey through the world of minerals and gemology. Key Features: Gem Recognition: Use your device's camera to recognize different gemstones using advanced artificial intelligence algorithms. Detailed information: Access detailed information about stones, including their history, characteristics, market value, and more. Personalized collections: Create and manage your own stone collections, track your finds, and add stones to your favorites. Educational Content: Lots of extensive library of articles and interactive guides such as “Fake&Real” etc. Progress & Levels: Track your progress and reach new levels of expertise as new gems are recognized and added. Wishlists, recognition history and more! The full functionality of the app is available to subscribers. Please note that subscription renewal is automatic, you can cancel your subscription no later than 24 hours before the end of the subscription period. Terms of Use: https://crystal-scanner.com/privacy.html Privacy Policy : https://crystal-scanner.com/terms.html ## Key features - Gemstone recognition via camera - Detailed stone information - Personalized collection management - Educational articles and guides - Progress tracking and leveling - Wishlist and recognition history ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Rock Finder Weekly Access | $12.99 | per 7 days | | Gemstone Identifier For A Week | $8.99 | per 7 days | ## What do users think of Diamond Identifier Rock Tester? Overall sentiment: negative **Pros** - 👍 User-friendly interface - 💰 Free version available - ✅ Occasionally accurate identifications **Cons** - ❌ Extremely poor accuracy rate - 💸 Expensive subscription (£13/week) - 🚫 Paywall blocks core functionality - 🎯 Misidentifies common stones consistently - 📊 Limited mineral database - 🔄 Inconsistent results across attempts - ⏱️ Slow loading times - 🤷 Provides multiple unhelpful options - 🖼️ Limited reference photos in database **Commonly reported bugs** - Identifies unrelated objects as valuable stones (selfies, walls, carpets as diamonds) - Cannot cancel subscription/trial membership - Fails to identify basic stones (amethyst, quartz, turquoise) - Identifies every mineral as Larimar - Inconsistent results when scanning same stone multiple times - App requires subscription before allowing any scans **Most requested features** - Correction/feedback mechanism to improve accuracy - Expanded mineral and gemstone database - More reference photos for stone variations (jasper, agate types) - Learning algorithm to adapt from user corrections - Make app completely free without paywall - Improve accuracy for certified gemstones ## Recent user reviews (10 of 33) All indexed reviews: https://appshunter.io/ios/app/diamond-identifier-rock-tester/id6478292057/reviews.md ### 1/5 — Rock ID *2025-09-06* It identifies every mineral as Larimar! Not very good. **Developer response:** Hello, recognition relies on patterns the AI has learned. In some cases, it may need clearer input to identify correctly. ### 1/5 — To expensive and just terrible pls fix this *2025-05-03, version 1.9* Forces me to pay £13 pound a WEEK ### 1/5 — Nonsense *2025-04-10* I’ve downloaded a handful of these rock/crystal identifier apps now and I get a) the wrong stone b) a list of possibilities ( that doesn’t help me ) c) can’t identity or d) scanning the same rock on different apps and getting different results. Why would you pay money for these apps that don’t do what they are intended to **Developer response:** Hi there! Your experience matters to us. We're investigating the issue to enhance our recognition algorithms. ### 1/5 — I CANT EVEN GET IN *2025-03-22* I CANT EVEN GET IN THE APP WITHOUT PAYING A SUBSCRIPTION, ONE OF THE REVIEWS SAYS ITS COMPLETELY FREE MAKE IT COMPLETELY FREE PLEASE **Developer response:** Hello! We’re sorry if the ads or purchases are bothersome. They’re optional and allow us to keep improving the app for everyone. ### 1/5 — False *2025-03-07* This app cannot tell if diamonds are real I have a diamond and it’s certified by the GIA I downloaded this app to see if it’s accurate and it’s not I rate this app below one star **Developer response:** We’re sorry to hear you didn’t enjoy the experience, but we’re grateful for your feedback. The team is already working on improvements. ### 1/5 — Don’t waste your time *2025-02-25* I submitted 5 known gemstones with 0% accuracy! It was sooooo way off. Pics were very clear on white background. In fact, one picture I submitted was a stock photo from GIA. Not even close. **Developer response:** Hello! We are aware of the concerns and are actively working on solutions. ### 1/5 — Completely bogus *2025-02-23* Doesn’t work how do I cancel?! **Developer response:** Hello! You can easily cancel your subscription and payments through your Apple ID settings. ### 2/5 — Apps *2025-01-18, version 1.8* I hate it who it tells u supscibe then if u scan a rock it comes up with 3 options. It’s a good app but please sort it out ### 1/5 — Worthless app *2025-01-09* Worst app I’ve ever used. I’m not paying for this. **Developer response:** Hello! We deeply value your trust and are sorry for any inconveniences. Improvements are coming soon. ### 1/5 — Not accurate *2024-11-17* I tested 3 stones . All the results are wrong **Developer response:** Hi. Thank you for your feedback, your opinion is important to our team. For more accurate recognition, please note that the photo should be taken in sufficient light, be clear and it is not desirable to have foreign objects besides the stone. ## Frequently asked questions about Diamond Identifier Rock Tester ### What does the Diamond Identifier Rock Tester app do? This app acts as an assistant for researching, recognizing, and collecting gemstones. It uses your device's camera and AI to identify stones, provides detailed information about them, and allows you to manage personal collections and track your progress. ### How does the gemstone recognition feature work? The app utilizes advanced artificial intelligence algorithms and your device's camera to recognize different gemstones. You can point your camera at a stone, and the app will attempt to identify it for you. ### Is the app free to use? The app offers a freemium model. While some functionality is available for free, full access to all features requires a subscription. Subscription renewal is automatic, and you can cancel up to 24 hours before the renewal date. ### What kind of educational content is available? The app features an extensive library of articles and interactive guides. These resources cover various aspects of gemology, including topics like distinguishing genuine stones from fakes ('Fake&Real'). ### Who would benefit from using this app? This app is designed for a wide range of users interested in gemstones, from beginners just starting their collection journey to experienced collectors looking for a convenient research and management tool. ## Version history (last 5 releases) ### 2.0 — 2025-07-13 Bug fixed ### 1.9 — 2025-01-21 Bug fixed ### 1.8 — 2024-10-21 Bug fixed ### 1.7 — 2024-10-08 Bug fix ### 1.6 — 2024-08-30 Bug fixed ## Apps similar to Diamond Identifier Rock Tester | App | Rating | Price | Category | | --- | --- | --- | --- | | [Stone Identifier - Rock Finder](https://appshunter.io/ios/app/stone-identifier-rock-finder/id1608573202) | 4.5 (1,302) | Free | Education | | [Stone Identifier Rock ID](https://appshunter.io/ios/app/stone-identifier-rock-id/id1586113453) | 3.6 (239) | Free | Education | | [Crystal identifier. Rock guide](https://appshunter.io/ios/app/crystal-identifier-rock-guide/id1570016035) | 3.4 (1,490) | Free | Education | | [Rock Identifier: Stone ID](https://appshunter.io/ios/app/rock-identifier-stone-id/id1546796934) | 4.7 (67,918) | Free | Education | | [Сrystal Identifier: Rock Guide](https://appshunter.io/ios/app/rystal-identifier-rock-guide/id6468662650) | 4.4 (1,509) | Free | Education | | [Rock Identifier Crystal Finder](https://appshunter.io/ios/app/rock-identifier-crystal-finder/id1593552314) | 4.1 (227) | Free | Education | ## More apps by Vi Thuy Linh - [Plant Identifier: Flowers Care](https://appshunter.io/ios/app/plant-identifier-flowers-care/id6670604483) All apps by Vi Thuy Linh: https://appshunter.io/developer/1718912145 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*