Gemetrix vs Rock Identifier | AI Scanner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gemetrix
Control your smartphone camera's exposure, ISO, color temperature, and focus for both short-wave and long-wave UV illuminations. Compare captured images side-by-side or with a slider, and save them with clear labeling.
- UV illumination control (SWUV & LWUV)
- Adjustable exposure, ISO, color temperature, focus
- Side-by-side image comparison
- Image slider comparison
- Save labeled images
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This app allows control of your smartphone camera, using the same settings for both short-wave ultra-violet (SWUV) and long-wave ultra-violet (LWUV) illuminations. The controlled settings are for exposure, ISO, color temperature and focus. The two images can then be compared either through alternating views or using a slider. Images with SW and LW labeling can be saved to your image gallery.
Rock Identifier | AI Scanner
Instantly identify rocks, crystals, gemstones, and minerals by simply taking a photo. Access detailed information about over 6,000 stones and build your personal collection. Explore the natural world with this user-friendly AI-powered tool.
- AI rock identification by photo
- Identify rocks, minerals, crystals, gemstones
- Accurate recognition via machine learning
- Build personal rock collection
- Access in-depth stone information
- Offline identification mode
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Rock Identifier: AI Powered Identify Rocks, Crystals, Minerals & Gemstones Instantly Looking for the most accurate rock identifier app? Rock Identifier: AI Powered helps you identify rocks, minerals, crystals, gemstones, and stones in seconds using advanced AI technology. Simply take a photo or upload an image from your gallery. The app instantly analyzes your picture and provides detailed rock identification results, including the stone name, type, characteristics, and geological information. With a database of 6,000+ rocks, minerals, crystals, and gemstones, this powerful rock scanner is perfect for collectors, geology enthusiasts, students, hikers, prospectors, and anyone curious about the natural world. Key Features • Rock Identifier by Photo – identify rocks instantly with a single picture • Crystal Identifier – recognize crystals and learn their properties • Mineral Identifier – discover minerals with accurate AI-powered analysis • Gemstone Identifier – identify precious and semi-precious stones • Fast & Accurate Rock Recognition – advanced machine learning technology • Personal Collection – save, organize, and manage your discoveries • Detailed Stone Information – learn about composition, hardness, origin, and more • Easy-to-Use Interface – designed for beginners and experts alike Whether you're exploring nature, studying geology, collecting minerals, or searching for gemstones, Rock Identifier: AI Powered is your trusted companion for rock identification and learning. Download now and start identifying rocks, crystals, minerals, and gemstones today! Privacy Policy: https://telegra.ph/Privacy-Policy-11-22-24 Terms of Use: https://telegra.ph/Terms-of-Use-11-22
Screenshots
Verdict
The clearest difference is rating: Rock Identifier | AI Scanner at 4.3 against Gemetrix's 2.2. Rock Identifier | AI Scanner also leads on ratings volume (226 vs 5). Gemetrix's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price 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. Rock Identifier | AI Scanner sells 3 in-app purchases, starting at $7.99 per 7 days. Gemetrix asks for nothing beyond the download.
Rock Identifier | AI Scanner holds the better App Store score, 4.3 against 2.2. That said, the two scores are not equally well evidenced: Rock Identifier | AI Scanner has 226 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 50% of Gemetrix's written reviews are positive against 33% of Rock Identifier | AI Scanner's, so the app with the better star average is not the one people write more warmly about.
Gemetrix ships an update monthly, Rock Identifier | AI Scanner every 12 months. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.
| Parameter | Gemetrix | Rock Identifier | AI Scanner |
|---|---|---|
| Price | Free | Free |
| Rating | 2.2 (5 ratings) | 4.3 (226 ratings) — better |
| Positive reviews | 50.0% of reviews — better | 33.3% of reviews |
| Number of ratings | 5 | 226 — better |
| Update frequency | Monthly — better | Every 12 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 10.3 — better | 13.0 |
| Further details — not scored | ||
| Size | 18 MB | 154 MB |
| Age rating | 4+ | 4+ |
| Developer | John Chapman | MyApps |
Customer experience
Gemetrix
Rock Identifier | AI Scanner
In-app purchases
Gemetrix
No in-app purchases
Rock Identifier | AI Scanner
- Premium Weekly3 Days trial$7.997 Days
- Stone Identifier Premium3 Days trial$14.991 Month
- Stone Identifier Premium$39.991 Year
Questions
Is Gemetrix free?
Is Rock Identifier | AI Scanner free?
Which has better reviews, Gemetrix or Rock Identifier | AI Scanner?
Do Gemetrix or Rock Identifier | AI Scanner have ads?
Which is updated more often, Gemetrix or Rock Identifier | AI Scanner?
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