Gem Identifier vs Stonely
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gem Identifier
Identify gemstones and estimate their value using AI. Simply snap a photo to get instant results, learn about geological origins, and discover similar stones. Ideal for collectors and jewelers alike.
- Instant AI gemstone identification
- Identify precious and semi-precious stones
- Learn geological origins and history
- Receive estimated market values
- Recommendations for similar gemstones
- Beginner-friendly interface
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Discover the beauty and value hidden inside every gemstone with Rock Detector, the powerful AI-driven identifier and appraiser. Simply take a photo of any stone to receive accurate results in seconds. Key Features: • Instant AI gemstone identification from a photo • Identify precious and semi-precious stones including diamonds and opals • Learn geological origins and historical background • Receive realistic estimated market values • Get smart recommendations for similar gemstones • Beginner-friendly interface for collectors and jewelers Whether you inherited a piece of jewelry, found a unique mineral while traveling, or are a professional collector, Rock Detector helps you uncover the story and value behind every gem. Join thousands of enthusiasts exploring the world of geology. Download now and turn every stone into a fascinating discovery. ——— Links & Legal ——— • Terms of Use: https://inandev.app/p/rock-detector/terms • Privacy Policy: https://inandev.app/p/rock-detector/privacy • EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Stonely
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Point your camera at any rock, crystal or mineral and find out what it is in seconds. Most identification apps hand you one confident answer — and it's often wrong. Stonely does something better. It shows you every likely match, ranked, with how sure it honestly is. Then it helps you prove it. HONEST ANSWERS, RANKED A photograph can only tell you so much: colour and shape are shared by dozens of minerals. Stonely gives you a shortlist with a real confidence score for each candidate, and tells you plainly when a photo simply isn't enough. PROVE IT WITH REAL FIELD TESTS This is what makes Stonely different. A streak plate, a steel nail, a magnet, a drop of vinegar, a UV torch — the same tests a geologist uses. Answer what you can and Stonely instantly re-ranks your matches, ruling candidates in and out. It even asks you the most useful test first, so one answer often settles it. A REFERENCE LIBRARY WORTH READING Every entry has the things that actually matter: Mohs hardness, streak colour, lustre, density, cleavage, crystal system, how it forms, where you'll realistically find it, and what it's honestly worth. For every look-alike there's the one decisive test that tells them apart — pyrite from gold, calcite from quartz, aragonite from celestine. Works offline. HONEST ABOUT VALUE Most rocks people find are common, and Stonely says so. You'll learn what would make a specimen valuable — size, colour, crystal habit, locality — instead of being told your driveway gravel is treasure. BUILD YOUR COLLECTION Save every find with its photo, your notes and the full reference page. Your own pocket museum, always with you. Everything stays on your device. MADE FOR • Rockhounds and mineral collectors • Crystal and gemstone enthusiasts • Beachcombers and river-gravel hunters • Parents with a kid who fills their pockets with stones • Students, hikers and anyone who's ever wondered "what IS this?" NO ADS. NO ACCOUNT. EVER. Stonely has no advertising, no sign-up and no data harvesting. Your photos are used to identify your stone and are never stored or used for training. STONELY PRO Unlimited identifications, the complete field-test system, the full reference library and unlimited saved finds. Available monthly, yearly with a 3-day free trial, or as a one-time lifetime purchase. Stonely is an educational identification aid, not a certified appraisal service. It makes no health, healing or investment claims. For anything valuable, consult a qualified gemologist. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is iOS requirement: Gem Identifier at 15.0 against Stonely's 17.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Gem Identifier sells 3 in-app purchases, starting at $4.99 per 7 days and Stonely sells 3 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Gem Identifier | Stonely |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 54 MB | 19 MB |
| Age rating | 4+ | 12+ |
| Developer | ALPEREN INAN | Wonderlink SL |
In-app purchases
Gem Identifier
- Weekly Plan3 Days trial$4.997 Days
- Yearly Plan3 Days trial$39.991 Year
- RockDetector Lifetime$79.99
Stonely
- Stonely Pro — Monthly$6.991 Month
- Stonely Pro — Yearly3 Days trial$24.991 Year
- Stonely Pro — Lifetime$39.99







