Rock ID: Gem & Crystal Scan
Mineral Crystal Photo Scanner
About
Identify rocks and minerals by taking a photo. Get detailed profiles with geological data, learn about different categories, and save your finds to a personal collection. Works offline and prioritizes user privacy.
What's New in Rock ID
1.0.1
August 19, 2026
Bug fixes and performance improvements.
Subscription plans
Weekly
Weekly Pro access
In-App Purchases
$49.99
Lifetime Pro
One-time purchase, yours forever
Developer apps
FAQ
How does Rock ID identify rocks?
Rock ID uses your device's camera to photograph a rock or mineral. It then analyzes the image and provides a ranked list of possible matches from its offline geology catalog. Each match includes a confidence score, and you can access detailed profiles for further learning.
Does Rock ID work offline?
Yes, Rock ID is designed to work entirely on your device, meaning it functions offline. This allows you to identify stones even when you don't have a signal, such as during hikes or in remote areas.
What kind of information is available in the specimen profiles?
Each profile provides comprehensive geological reference data, including Mohs hardness, luster, streak, composition, formation, occurrence, uses, and folklore. This helps you understand the scientific and cultural aspects of the identified specimen.
Can I save the rocks I identify?
Absolutely. Rock ID allows you to keep a personal collection of all your finds. You can add photos, notes, mark favorites, and record the date you added each specimen to your collection.
What are the subscription options for Rock ID?
Rock ID offers premium access with unlimited photo identification, the full 67-specimen catalog, and an unlimited personal collection. You can choose from weekly ($4.99/P7D), yearly ($24.99/P1Y), or a one-time lifetime purchase.
Is Rock ID suitable for educational purposes?
Yes, Rock ID is perfect for geology and earth science students, as well as parents and teachers. It turns outdoor exploration into a specimen hunt by providing fast access to hardness, streak, and formation facts.
Does Rock ID have ads?
No, Rock ID does not contain advertisements. The app prioritizes a clean user experience, and any premium features are accessed through in-app purchases.
How often is Rock ID updated?
Rock ID was last updated on August 19, 2026, with version 1.0.1. The release date was July 20, 2026, indicating a recent release and potential for future updates.