The Rock Identifier App
Any Rock Identifieris coming to your pocket — a native Android app first, iPhone after. Same engine as the website: photograph a rock, crystal, gem, mineral or fossil and get an identification with an honest confidence score and the field tests to confirm it. Until launch day, the full identifier already runs in your phone's browser — no install, nothing lost by starting now.
Want to know the moment it ships? Create a free account and we'll email you when the Android app is live.
Identify rocks on your phone today — no app needed
The identifier on this site is built phone-first. Open the crystal identifier or rock identifier in Safari or Chrome, tap the upload box, and your phone offers the camera directly — photograph the specimen in good light and the result arrives in seconds, with a confidence score, the look-alikes worth ruling out, and the simple checks (streak, hardness, magnetism) that confirm it. Your first 3 identifications are free, and every stone links into the field guide so you can read what you're holding.
What the native app adds
The app is the same identification engine wrapped in a faster field workflow — the things you want when you're actually outdoors holding a rock:
- One-tap camera flow: open, point, identify — no browser, no tabs.
- Your collection with you: every find saved with its photo and ID, ready to show or re-check.
- A home for your rockhounding: identification history in one place instead of scattered screenshots.
Exact features may shift before release — we'd rather under-promise here and let the app speak for itself.
How to judge any rock identifier app
Whichever app you end up using — ours or anyone else's — the same five questions separate the useful ones from the disappointing ones:
- Does it admit uncertainty? Some minerals are genuinely indistinguishable in a photo. An identifier that always answers confidently is guessing; look for confidence scores and honest “could also be” alternatives. In our blind testing the engine on this site called common specimens correctly about 9 times in 10 — and, just as important, flagged the ambiguous ones instead of bluffing.
- Does it teach you to confirm? A photo is a hypothesis; the hardness test and streak test are the proof. Good apps hand you those next steps.
- What does free actually get you? Check how many identifications you get before the paywall, and what they cost after.
- How wide is its knowledge? Rocks, crystals, gems, minerals and fossils — or just tumbled crystals?
- Can you learn more than a name? A bare label is a dead end; a linked field guide — formation, value, care, look-alikes, real photos — is what makes an ID stick.
If you're weighing options, our guide on how to tell if a crystal is real shows the kind of confirmation thinking any good identifier — human or app — should walk you through.
Frequently asked questions
Is there a free rock identifier app?
You don't have to wait for one — this site is a free rock identifier that already works on any phone. Open the identifier in your browser, snap or upload a photo, and your first 3 identifications are free. The native Android app we're building will keep the same free allowance, with Pro for unlimited IDs.
When does the Android app launch?
It's in development now, Android first and iPhone after. We're not going to promise a date and miss it — create a free account and we'll email you the day it's live on Google Play.
Will the app be free?
Same honest model as the website: 3 free identifications to start, then Pro for unlimited IDs plus value and rarity estimates, authenticity checks and care guides. One Pro subscription will cover both the website and the app.
What will the app identify?
The same engine as the website: rocks, crystals, gemstones, minerals and fossils — with an honest confidence score and the at-home tests to confirm the result. For safety it deliberately does not identify things where a wrong answer could hurt you, such as mushrooms, plants or wildlife.
Do I need an app to identify rocks on my phone?
No. The identifier on this site is built for phones: open it in Safari or Chrome, tap to take a photo, and you get the same identification, confidence score and confirmation tests the app will give. The app adds convenience — a home-screen icon and a faster camera flow — not a different brain.
Don't wait for the download
The identifier is one tap away right now — free to start, straight from your phone's camera.
Identify a rock now