Rock Identifier: Stone Guide
Mineral Crystal Gemstone Photo
Only for iPhone
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Photograph any rock and get ranked possible matches, then read the full profile: hardness, luster, streak, formation and lore. Works completely offline.
Found a mysterious rock on a bush walk and can't work out what it is? Snap a photo and Rock Identifier ranks the closest matches from a bundled geology catalogue, then opens a detailed specimen profile so you actually learn what you've picked up.
Most identifier apps send your photo to a server and hand back one confident-sounding answer. This one works completely on your phone, offline, and shows you a ranked list of possible matches with an honest confidence score, plus a clear "no confident match" screen that directs you to search the catalogue instead of guessing. Every profile contains proper geological reference data: Mohs hardness, luster, streak, composition, formation, where it occurs, uses, folklore and helpful facts.
WHAT YOU GET
- Photograph a rock with your camera or select a photo from your library and see ranked possible matches in seconds
- Know exactly what you're holding: Mohs hardness, luster, streak, colours, composition, formation and occurrence for 67 specimens
- Browse igneous, sedimentary, metamorphic, mineral, crystal and gemstone categories, or search by name, nickname, colour or composition
- Save every find in a personal collection with its photo, notes, favourites and the date you discovered it
- Test hardness in the field using the full Mohs scratch scale and identify shine with the luster glossary
- Explore the cultural lore behind amethyst, rose quartz, malachite, turquoise and obsidian, clearly noted as folklore, not science
PERFECT FOR
- Rockhounds and beach walkers who come home with pockets full of mysteries
- Geology and earth science students needing hardness, streak and formation facts quickly
- Mineral collectors cataloguing their shelf specimens
- Parents and teachers turning a nature walk into a proper specimen adventure
WHY NOT JUST SEARCH ONLINE
A web search gives you a name and nothing more, requires signal, and is useless in a canyon or on a quarry floor. Rock Identifier keeps the full catalogue, every profile and your saved collection right on your phone, so it works with zero bars, and it's honest when it's unsure instead of making guesses. Results are a best-effort visual match for learning, not a professional valuation.
PRIVACY
Your photos never leave your iPhone. Identification runs entirely on your device, your collection stays local, and there are no accounts, no servers and no tracking.
FULL ACCESS
Premium unlocks unlimited photo identification, the complete 67-specimen catalogue with full details, and an unlimited personal collection with notes. Choose weekly, yearly, or a one-time lifetime purchase. Subscriptions renew automatically until you cancel in your App Store settings; lifetime is a single payment.
Grab a rock from your windowsill right now and find out what you've actually got.
Terms of Use (EULA): https://web-levi.web.app/terms
Privacy Policy: https://web-levi.web.app/privacy-policy
Questions? tphuc.work@gmail.com
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Bug fixes and performance improvements.
Subscriptions
In-App Purchases
The developer, Phuc Pham, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Phuc Pham
- Size
- 24.3 MB
- Category
- Education
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Classification
4+
- 4+
- In-App Purchases
Yes
- Quartz & Agate · Pay Once $79.99
- Specimen Collection · Yearly $39.99
- Geology Guide · Weekly $7.99
- Copyright
- © 2026 Phuc Pham