Live iOS appKnow your stones.
Identify rocks, minerals, and crystals from a photo. Save finds, explore details, and learn with an AI geologist.
Product
A complete pocket geology kit.
Stone Sense is more than a scanner. It turns each find into a saved object you can study, compare, and revisit.
Instant rock ID
Take a photo of a specimen and get likely matches in seconds, with practical context for what to check next.
Confidence scores
Stone Sense shows probability and uncertainty instead of acting like every scan is a final answer.
Personal collection
Save finds, compare specimens, keep notes, and build your own field museum over time.
Encyclopedia
Browse minerals, rocks, crystal habits, properties, formation clues, and educational context.
AI geologist
Ask follow-up questions about hardness, streak, rarity, formation, or what to photograph next.
Challenges
Daily prompts and progress loops help turn casual curiosity into a repeatable learning habit.
Flow
From unknown specimen to saved discovery.
The app is built for quick field use: identify, verify, save, then ask deeper questions when curiosity kicks in.
Snap
Photograph a rock, mineral, or crystal in natural light when possible.
Compare
Review the top match, confidence score, visual cues, and similar specimens.
Collect
Save the find, add notes, and keep building your personal specimen library.
Guide
A friendly guide, not a black box.
Gemo gives the product a clear personality while the app stays honest about uncertainty. Results are educational, visual, and easy to question.
Screens
Built like a real app, not a demo.
Scan
Results
Explore
Collection
AI geologist
Profile
Welcome
Free tools & guides
Try Stone Sense free before you download.
Get an AI-powered first guess from a photo, or learn how to identify rocks, crystals, and minerals on your own.
Free AI rock scanner
Upload a photo of any rock or mineral and get an instant educational first guess — 1 free scan, no app needed.
Scan a rockWhat crystal is this?
Upload a photo of a crystal for an instant AI first guess — reading crystal habit, color, and clarity, with honest confidence scores.
Identify a crystalWhat mineral is this?
Upload a photo for an AI first guess, then confirm it with the hardness, streak, and luster tests geologists use.
Identify a mineralWhat gemstone is this?
Upload a photo for an AI first guess from color, clarity, and luster — with honest guidance on when a valuable stone needs a lab.
Identify a gemstoneRock identifier app
Learn how Stone Sense identifies rocks, minerals, and fossils from photos with confidence scores and next-step checks.
See how it worksCrystal identifier app
Identify crystals, minerals, and gemstones from a photo. Understand color, luster, transparency, and crystal habit.
Identify crystalsStone identification app
Identify stones, rocks, and minerals from a photo with honest confidence scores and simple tests to confirm.
Identify stonesGemstone identifier app
Identify gemstones and precious stones from a photo using color, clarity, and luster — then verify valuable finds with an expert.
Identify gemstonesMineral identifier app
Identify minerals from a photo using color, luster, crystal habit, hardness, and streak clues with next-step tests.
Identify mineralsFree identification guides
Learn how to identify rocks, meteorites, quartz, and gemstones — with honest, practical guides on what AI and at-home tests can and can't tell you.
Read the guidesIdentification field guides
How to identify meteorites, agate, geodes, fossils & more — physical properties, simple at-home tests, and look-alikes for each specimen.
Browse field guidesStone Sense
Start with a quick quiz, then identify your next specimen.
Find your first stone profile and continue into the app experience from there.
