# Rock Master: Rock Identifier — Crystal identifier, Rock ID > AI-powered app to identify, value, and collect rocks, gems, and diamonds. (iPhone/iPad app by moon sense Limited.) - Source: https://appshunter.io/ios/app/rock-master-rock-identifier/id6459474832 (this page in markdown: same URL + `.md`) - Developer: [moon sense Limited](https://appshunter.io/developer/1701132408) - Category: Education, Utilities - Price: Free with in-app purchases - Rating: 4.54/5 from 536 App Store ratings · 42 written reviews indexed - Age rating: 4+ - Requires: iOS 12.4 · 58 MB - Languages: English - Released: 2023-08-16 - Data updated: 2026-06-10 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/rock-master-rock-identifier/id6459474832/reviews.md ## What is Rock Master? Rock Master is the most professional rock identifier app that you can identify stones and value diamonds by photo in a few seconds. At the same time, you can not only get more knowledge about rocks, stones, and minerals, but also Rock Master will teach you how to identify their authenticity. Furthermore, you can search your interested stones and manage your collections by Rock Master: Rock identifier. Why choose Rock Master: Rock Identifier？ Rock Master has the newest AI model for identifying rocks, which allows you to accurately identify, value, search, and collect over 10,000+ kinds of rocks, stones, crystals, gems, minerals, diamonds, and fossils. It doesn't matter who you are - a geologist, nature explorer, minerals hobbyist, diamond tester, or amateur seeker, Rock Master: Rock Identifier, will be your rock guide and instructions. With Rock Master: Rock Identifier in your pocket, you will find: - Accurately identify and value Rocks, Gems, Crystals, Stones, Fossils, minerals - Strong knowledge database of Rocks, Gems, Crystals, Stones, Fossils, minerals - Organize your own online collection - Instantly identify the gemstones, crystals, and diamonds as real or fake About Rock Master: Rock Identifier Premium: Interested in the healing properties of any crystals? Want to know what gemstones to have for your specific needs? Upgrade your account to premium to find out the mysterious healing power of crystals, and learn more facts about how crystals influence your health、luck、wealth, and even your life. - Subscription Name: Yearly Premium - Subscription Price: $29.99/year - Subscription Duration: 1 year (7 days trial) - Subscription Description: Users will get a 1-year premium account which includes identifying rocks without limits and unlocking more professional knowledge of the Healing Crystal - Payment will be charged to the iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period - The account will be charged for renewal within 24 hours before the end of the current period, and the cost of the renewal - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase Terms of Use: https://moon-se.s3.ap-southeast-1.amazonaws.com/rock/static/item-ios.html Privacy Policy: https://moon-se.s3.ap-southeast-1.amazonaws.com/rock/static/policy.html Contact us: rockmastergroup@gmail.com Rock Master: Rock Identifier, your private online rock identifier expert! ## Key features - Identify rocks, gems, and diamonds by photo - Value diamonds and check authenticity - Access a large knowledge database - Manage personal rock collections - Discover crystal healing properties ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Rock Master Premium | $29.99 | per year | | Rock Master Premium | $29.99 | per year | ## What do users think of Rock Master? Overall sentiment: negative **Pros** - ⭐ Good app for rock/gem identification - 💰 Provides pricing and rarity information **Cons** - 🚫 Frequent network errors preventing access - 💸 Limited free scans, requires subscription - ❌ Inaccurate identification results **Commonly reported bugs** - Network errors on various devices and connections - Incompatible with older iOS versions **Most requested features** - Increase free daily scans - Improve accuracy of rock/gem identification - Add option to view other users' scores ## Recent user reviews (10 of 42) All indexed reviews: https://appshunter.io/ios/app/rock-master-rock-identifier/id6459474832/reviews.md ### 1/5 — Does Not Work *2025-04-23* Every time I try to open the app it says there is an internet error and it does not function. Please fix this error. ### 1/5 — It won’t let me in *2025-04-02* It just gives an internet connection error. Not even usable for most people. ### 1/5 — No connection *2025-03-27, version 2.0.0* Keeps saying network error with WiFi or Data. Won’t open app. ### 1/5 — Weird *2025-03-27* Trying to play, I opened the app and for some weird reason it said that my Internet connection was like not the best. My Internet connection here is perfectly fine and we restart my phone. I tried deleting the game and getting it back, but it still won’t work would not recommend. ### 5/5 — It won’t let me in *2025-03-26* I am on iPhone 12 and it always says that there’s an Internet connection problem when I’m right next to my router and it’s perfectly fine and it’s plugged into my phone. Please fix this. ### 1/5 — WOULDN’T LET ME GET IN *2025-03-19* When I downloaded the app I was so excited but as soon as I got on it. It just wouldn’t let me do it so t said no internet connection and I thought that it was stupid because I tried it on and on and on again and it still said it so that is why I gave it a 1star. ### 1/5 — ???? *2025-03-16, version 2.0.0* When it said continue it said network error occurred every single time !!!!! I wish we can vote 0 stars⭐️ ### 1/5 — Don’t download. *2025-03-10, version 2.0.0* The app is like a prank. When you open it there is an intro but then it said network error so I tried on my friends phone and it did not work either so do not download!!!! ### 1/5 — PLS READ!!! *2025-03-07* This app is TERRIBLE as soon as you get the app it says it has a network connection error and. Then you cannot get in!!!! Will never recommend 0 stars!! ### 5/5 — Problem *2025-03-05* I think that the app is good but whenever I try to open it, it says that there’s an Internet problem when actually the Internet’s perfectly fine in my house ## Frequently asked questions about Rock Master ### What does the Rock Master app do? Rock Master is a professional rock identifier app that allows you to identify stones and value diamonds using just a photo. It provides knowledge about rocks, stones, and minerals, teaches you how to identify their authenticity, and helps you manage your collections. ### What are the key features of Rock Master? Key features include accurately identifying and valuing rocks, gems, crystals, stones, fossils, and minerals using an advanced AI model. It also offers a strong knowledge database, the ability to organize your own online collection, and instant gemstone and diamond authenticity checks. ### How much does Rock Master cost? The app offers a free version with core identification features. A premium subscription is available for $29.99 per year, which includes unlimited rock identification and access to more professional knowledge about healing crystals. A 7-day trial is offered for the premium subscription. ### What kind of rocks and minerals can this app identify? The app can accurately identify and value over 10,000 kinds of rocks, stones, crystals, gems, minerals, diamonds, and fossils. It is designed to assist a wide range of users, from geologists to hobbyists. ### Can I use this app to check if a diamond is real? Yes, the app can instantly identify gemstones and diamonds, helping you determine their authenticity. This feature is beneficial for anyone looking to verify the genuineness of precious stones. ## Version history (last 5 releases) ### 2.0.0 — 2025-01-15 Rock Master is coming with a new version: 1. Enhanced AI recognition function to improve the speed and accuracy of stone recognition 2. Added recognition list to let you see the popular stones at a glance 3. Other user experience optimization ### 1.13.1 — 2024-04-28 Emergency crash fix ### 1.13.0 — 2024-04-26 Collection function optimization ### 1.12.0 — 2024-04-03 User experience optimization ### 1.11.0 — 2024-03-20 User experience optimization ## Apps similar to Rock Master | App | Rating | Price | Category | | --- | --- | --- | --- | | [Rock Identifier: Stone Finder](https://appshunter.io/ios/app/rock-identifier-stone-finder/id6590601814) | 4.4 (96) | Free | Education | | [AI Homework - Helper & Solver](https://appshunter.io/ios/app/ai-homework-helper-and-solver/id6473531116) | 4.4 (226) | Free | Education | | [Stone Identifier](https://appshunter.io/ios/app/stone-identifier/id6443684085) | 4.3 (810) | Free | Education | | [OWL－ English Language Learning](https://appshunter.io/ios/app/owl-english-language-learning/id6449721954) | 4.7 (36) | Free | Education | | [Rock & Crystal Identifier](https://appshunter.io/ios/app/rock-and-crystal-identifier/id1553800023) | 4.6 (2,261) | Free | Education | | [Diamond Identifier Rock Tester](https://appshunter.io/ios/app/diamond-identifier-rock-tester/id6478292057) | 4.5 (340) | Free | Education | --- *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.*