Stone Identifier vs Geomaster
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stone Identifier
Identify rocks, minerals, and crystals from photos with high accuracy. Explore their properties, discover nearby deposits on a map, and build your own digital collection. Learn fascinating facts about stones from around the world.
- Accurate rock identification from photos
- Study physical and chemical properties
- Discover nearby rock deposits on a map
- Create and manage a personal rock collection
- Learn about thousands of rock types
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Have you encountered a rock and you don’t know what it is? Maybe you want to learn more about it, minerals or any crystal? Rock Seeker is the ultimate app to help you identify and study more about thousands of rocks from all over the world. How does it work? Rock Seeker identifies the rock in your camera shot or photo with the utmost accuracy. Our app has a comprehensive, easy to browse interface that helps you study the rock, understand its physical and chemical properties too. It’s also possible to add the rock to your rock collection. You can see possible location of every rock you found or just browsing with convenient map showing deposits nearby. Learn more about rocks fast and easy Rock Seeker makes it very easy to analyze and study any rock you own, but you can also explore trendy stone or discover cool facts about them. It’s always exciting to learn about rocks and all kinds of cool stones, and with Rock Seeker you can do that fast and easy. Immerse yourself into the world of extraordinary rocks and educate yourself about them. Features: Analyze and study thousands of rock types Search it on the map and find deposits nearby Very accurate rock identification engine Create your own rock collection Subscription pricing and terms: RockSeeker offers the following auto-renewing subscriptions to provide you with unlimited access to identification and database within RockSeeker Platinum while you maintain an active subscription: Weekly with a 3-day trial at $4.99; Weekly at $4.99; Monthly with a 3-day trial at 9.99; Monthly at $9.99; Yearly with 3-day trial at 29.99, Yearly at $29.99. For other currencies, the price corresponds to the same price tier on the App Store Pricing Matrix. Payment will be charged to the credit card connected to your iTunes Account when you confirm the initial subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24-hours prior to the end of the current period, and the cost of the renewal will be identified. You may manage your subscription and auto-renewal may be turned off by going to your Account Settings after the purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription, where applicable. If you have any questions or suggestions on how we can improve the application, please do not hesitate to contact us. Read more about our terms and conditions here: Privacy Policy: https://docs.appsx.lv/policies/privacy-policy Terms of Use: https://docs.appsx.lv/policies/terms-of-use
Geomaster
This app serves as a comprehensive field and study companion for geology enthusiasts, students, and professionals. It offers integrated geological tools for measurement, reference, and identification, supporting both academic exploration and real-world fieldwork.
- Strike and Dip Compass
- Trend and Plunge Compass
- Geological Time Scale
- Geological Dictionary
- Rock Identification Trees
- Mineral Classification
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GeoMaster GeoMaster is a comprehensive field and study companion for geologists, earth science students, and enthusiasts. Designed to support both fieldwork and academic exploration, GeoMaster integrates powerful geological tools and reference resources into a single, user-friendly platform. Core Features: Strike and Dip Compass – Accurately measure the orientation of geological structures. Trend and Plunge Compass – Precisely assess the directional geometry of features. Navigation Compass – Maintain orientation during field mapping and traverses. Geological Time Scale – Access a structured timeline of Earth’s history. Geological Time Details – Examine detailed information on individual time periods. Quick-Access Widgets – View geological time and dictionary entries directly from your home screen. Geological Dictionary – Reference essential terminology with concise, searchable definitions. Favorites System – Mark and revisit frequently used terms and entries. Rock Section – Browse descriptions, key properties, and identification guides. Identification Trees – Use step-by-step decision trees to assist in rock recognition. Classification Diagrams – Visual tools for accurately classifying rock types. Mineral Section – Explore minerals with detailed property data, groupings, and classification schemes. Why GeoMaster? Integrated Geological Toolkit – Combines measurement, reference, and identification in one app. Field-Ready Design – Optimized for clarity, speed, and usability in real-world conditions. Structured Learning Support – Ideal for both academic study and field applications. Ongoing Enhancements – Regular updates with expanded content and new features. Download GeoMaster today and equip yourself with a reliable, professional-grade geology toolkit—ready for the field, the lab, or the classroom.
Screenshots
Verdict
The clearest difference is review sentiment: Geomaster at 100% against Stone Identifier's 16%. Geomaster also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 10). Stone Identifier's advantage is ratings volume (1.5K vs 4) and update cadence (every 3 weeks vs every 3 months). On price, device support and iOS requirement 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. Stone Identifier sells 10 in-app purchases, starting at $4.99 per 7 days. Geomaster asks for nothing beyond the download.
Geomaster holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Stone Identifier has 1.5K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 16% of Stone Identifier's written reviews are positive against 100% of Geomaster's.
Stone Identifier ships an update every 3 weeks, Geomaster every 3 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | Stone Identifier | Geomaster |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (1.5K ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 16.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 1.5K — better | 4 |
| Update frequency | Every 3 weeks — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 185 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | App Holdings | Jacques Brayel Tchouanmoe |
Customer experience
Stone Identifier
Geomaster
Bugs and requests
Stone Identifier
Reported bugs
3 issues- App crashes or freezes during use
- Server connection issues prevent identification
- Incorrect or nonsensical identification results
Requested features
4 requests- Allow manual rock/mineral identification input
- Provide more detailed information on each specimen
- Improve accuracy of identification algorithms
- Offer a one-time purchase option instead of subscription
Geomaster
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Stone Identifier
- RockPlatinum Weekly$4.997 Days
- RockPlatinum Weekly with Trial3 Days trial$4.997 Days
- RockPlatinum Weekly with Trial3 Days trial$5.997 Days
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- RockPlatinum Weekly$5.997 Days
- RockPlatinum Weekly 7day Trial7 Days trial$5.997 Days
- RockPlatinum Monthly Access$9.991 Month
- RockPlatinum Monthly + Trial3 Days trial$9.991 Month
- Rock Seeker Platinum Annual$29.991 Year
- RockPlatinum Annual 3day Trial3 Days trial$29.991 Year
- Rock Seeker Platinum Annual$39.991 Year
Geomaster
No in-app purchases
Questions
Is Stone Identifier free?
Is Geomaster free?
Which has better reviews, Stone Identifier or Geomaster?
Do Stone Identifier or Geomaster have ads?
Which is updated more often, Stone Identifier or Geomaster?
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