Instant identification
Point your camera at a rock, mineral, crystal or gemstone and get an answer in seconds.
Rock identifier for iPhone
Know every rock you pick up.
Snap a photo of a rock, mineral or crystal. AI Stone names it and explains it like a field geologist would: hardness, streak, luster, how it formed and how rare it is.
Download on theApp Store
Requires iOS 17 or later. Identification needs AI Stone Pro: $4.99/week or $24.99/year in the US. Some plans start with a free trial.
- 20+ properties per scan
- No account
- No ads
- iCloud sync
How it works
From pocket find to full ID in three steps.
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Snap
Put the rock on a plain background and take a photo, or pick one from your library. Zoom in for small crystals.
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Identify
AI Stone names the rock or mineral and tells you whether it’s igneous, sedimentary, metamorphic or a mineral.
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Learn and keep
Read the full report, from Mohs hardness to care tips, and find it again any time in your collection.
The full report
Not just a name. Everything a geologist would check.
Most rock apps stop at a name and a paragraph. Every AI Stone scan comes with a structured report, in plain words, with hardness and density explained so a beginner can follow.
Overview
- Name
- Also known as
- Description & history
- Rarity
- Stone type
- Gemstone category
Physical properties
- Crystal system
- Colors
- Streak
- Luster
- Transparency
- Mohs hardness
- Density
- Magnetism
- Cleavage
- Fracture
- Refractive index
- Fluorescence
Formation & origin
- How it forms
- Typical age
- Where it’s found
Uses & care
- Common uses
- Durability
- Cleaning
- Storage
- Health risks
Crystal lore
- Symbolism
- Metaphysical beliefs
- Chakra
- Healing beliefs
Features
Made for rockhounds, collectors and the curious.
Physical properties, explained
Hardness, streak, luster and density, each with a plain-language note on what it means for your stone.
Formation and age
Learn how your stone formed, roughly how old it is and where in the world it’s commonly found.
Care tips
How to clean and store each stone, and which ones to keep out of water or sunlight.
Crystal meanings, kept separate
Symbolism, chakra and traditional beliefs have their own section, so they never get mixed up with the science.
Your collection, everywhere
Every stone you identify is saved and syncs across your devices with iCloud.
A closer look
See it in action.
Honest by design
A rock app that respects you.
Rock identifier apps are known for hidden prices, surprise yearly charges and ads. AI Stone is built the other way.
Prices on the page
AI Stone Pro is $4.99 a week or $24.99 a year in the US. You see the price before you start, and you choose the plan.
Cancel in two taps
Subscriptions are managed by Apple. Cancel any time in Settings → your name → Subscriptions.
No account, no ads
Open the app and start scanning. There’s nothing to sign up for and nothing to watch.
Science first
Geology comes first. Crystal lore is labelled as belief, not fact.
Clear about limits
A photo can’t test hardness or chemistry, and every result says so. For anything valuable, confirm with a scratch test or an expert.
Private
We don’t collect personal data or sell anything about you. Your collection lives in your own iCloud.
Who it’s for
For anyone who picks up rocks.
Rockhounds
Name your finds on the trail, at the beach or in the riverbed, and log them as you go.
Collectors
Catalogue minerals and crystals, with properties and rarity for every specimen.
Students and teachers
A pocket field guide for rock types, the Mohs scale and how minerals form.
Parents and kids
Turn “what’s this rock?” into a quick lesson, with hardness explained in kid-friendly words.
Guides
Learn to read your rocks.
How to Identify a Rock: A Step-by-Step Guide
Identify a rock or mineral by checking colour, grain, luster, streak, hardness, magnetism and weight, then decide if it is igneous, sedimentary or metamorphic.
Read guide →The Mohs Hardness Scale at Home: How to Do a Scratch Test
Test a mineral's hardness with a fingernail, coin, steel knife and glass. Learn the 10 Mohs minerals and how to do a scratch test without fooling yourself.
Read guide →How to Tell If a Rock Is a Meteorite
Check a suspected meteorite for fusion crust, weight, magnetism and thumbprint marks, rule out meteorwrongs like slag and magnetite, and learn how to verify it.
Read guide →FAQ
Questions, answered.
Is AI Stone free?
AI Stone is free to download. Identifying stones needs an AI Stone Pro subscription: $4.99 a week or $24.99 a year in the US, with local prices shown in the App Store. Some plans start with a free trial.
What can it identify?
Rocks, minerals, crystals and gemstones: from granite and obsidian to quartz, amethyst, labradorite and pyrite.
How accurate is it?
AI Stone does well on common rocks and minerals in a clear photo. Some stones look alike, and a photo can’t measure hardness or chemistry, so treat the result as a strong first answer. For anything valuable or unusual, like a possible meteorite or gemstone, confirm with a geologist or gemologist.
How do I get the best result?
Clean or wet the stone so its true colour shows, put it on a plain background in daylight, and fill the frame. Photograph a fresh, unweathered surface if you can.
Does it tell me what my rock is worth?
AI Stone tells you how rare a stone is, from very common to extremely rare, which is the best quick signal of whether it deserves a closer look. Real value depends on size, quality and the specimen market, so get an appraisal before selling anything rare.
How do I cancel?
Open Settings on your iPhone, tap your name, then Subscriptions, and choose AI Stone. Apple handles all billing, so you can cancel any time.
Will my collection sync to my other devices?
Yes. Your collection syncs through iCloud across devices signed in to the same Apple Account.
How can I get help?
Email hello+aistone@sarunw.com, or use “Report a bug” in the app’s settings.
What’s on your windowsill?
Download AI Stone and find out what your rocks really are.
Download on theApp Store