# Geomaster — Earth Geology Rocks Mineral id > Geology field and study companion with measurement tools and reference resources. (iPhone/iPad app by Jacques Brayel Tchouanmoe.) - Source: https://appshunter.io/ios/app/geomaster/id6520384624 (this page in markdown: same URL + `.md`) - Developer: [Jacques Brayel Tchouanmoe](https://appshunter.io/developer/1560440986) - Category: Education, Reference - Price: Free - Rating: 5.00/5 from 2 App Store ratings · 6 written reviews indexed - Age rating: 4+ - Requires: iOS 17.6 · 11 MB - Languages: American English - Released: 2024-07-08 - Data updated: 2026-08-11 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/geomaster/id6520384624/reviews.md ## What is Geomaster? 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. ## Key features - Strike and Dip Compass - Trend and Plunge Compass - Geological Time Scale - Geological Dictionary - Rock Identification Trees - Mineral Classification ## Recent user reviews (6 of 6) All indexed reviews: https://appshunter.io/ios/app/geomaster/id6520384624/reviews.md ### 5/5 — Amazing!! *2025-11-30* Perfect app for geology students. Very comprehensive!! **Developer response:** Thanks for the kind words! Happy it’s helping. ### 5/5 — Very elegant app *2025-04-25, version 1.3* Very nice and accurate app for geology students. The widgets help me learn something new everyday and the user interface is so nice. ### 5/5 — Just downloaded *2025-01-06* Just tried strike and dip, looks like it works properly. Excellent, especially for a free app! Kudos to the developer! **Developer response:** Thank you for your kind words! We’re thrilled you’re enjoying the app. Your support motivates us to keep improving. Let us know if you have any suggestions! ### 5/5 — So Helpful *2024-12-13, version 1.2* I love this app!! The dictionary is huge, and the timescale is so helpful. Very excited to see what else is so come. ### 5/5 — This is great! *2024-12-13, version 1.2* I am genuinely impressed with this app, if you’re an advocate of the field or a student of Earth Sciences. This app will help you, I know it’s helped me! ### 5/5 — Very elegant app *2024-11-18, version 1.2* Very nice and accurate app for geology students. The widgets help me learn something new everyday and the user interface is so nice. ## Frequently asked questions about Geomaster ### What geological measurements can Geomaster help with? Geomaster includes a Strike and Dip Compass to accurately measure the orientation of geological structures, and a Trend and Plunge Compass to assess the directional geometry of features. ### Does Geomaster offer information on Earth's history? Yes, Geomaster features a Geological Time Scale providing a structured timeline of Earth's history, along with detailed information on individual time periods. ### How does Geomaster assist with identifying rocks? Geomaster provides Identification Trees that use step-by-step decision trees to aid in rock recognition, alongside Classification Diagrams for accurate rock type classification. ### Can I access geological terms quickly with Geomaster? Geomaster includes a Geological Dictionary with concise, searchable definitions for essential terminology. It also offers Quick-Access Widgets to view dictionary entries directly from your home screen. ### Is Geomaster suitable for use in the field? Yes, Geomaster is designed with a field-ready approach, optimized for clarity, speed, and usability in real-world conditions, making it ideal for fieldwork. ### How often is Geomaster updated? Geomaster receives ongoing enhancements with regular updates that expand content and introduce new features, ensuring the app remains current and useful. ### What devices is Geomaster available on? Geomaster is available for both iPhone and iPad devices, offering a versatile platform for users. ### Does Geomaster have ads? Geomaster is ad-free, providing an uninterrupted user experience for all its geological tools and reference materials. ## Version history (last 5 releases) ### 1.7 — 2026-02-05 Bug fixes ### 1.6 — 2026-01-07 New Taxa section added ### 1.5 — 2025-10-15 • New Quiz Section: Test your geology knowledge with interactive quizzes covering minerals, rocks, geologic time, and more. • Improved Interface: Enjoy a cleaner, more intuitive design for smoother navigation. • Performance Enhancements: Faster load times and overall app optimization for a seamless experience. • Minor Bug Fixes: Improved stability and reliability across all features. Explore. Learn. Master Geology — with GeoMaster. ### 1.4 — 2025-05-16 New Mineral Section: Browse minerals with detailed properties, groupings, and classification data. Improved UI: Minor refinements for a smoother, more intuitive user experience. Performance Optimizations: Faster loading and improved responsiveness across all tools. ### 1.3 — 2025-03-18 • New Rock Section: Explore detailed descriptions of various rocks. • Identification Steps & Trees: Easily identify rocks with guided steps and classification trees. • Classification Diagrams: Visual tools to help classify rocks accurately. Update now and enhance your geological knowledge with these powerful new features! ## Apps similar to Geomaster | App | Rating | Price | Category | | --- | --- | --- | --- | | [Rock & Gemstone Identifier App](https://appshunter.io/ios/app/rock-and-gemstone-identifier-app/id6475217911) | 4.7 (417) | Free | Education | | [Stone Identifier - Rock Finder](https://appshunter.io/ios/app/stone-identifier-rock-finder/id1608573202) | 4.4 (1,525) | Free | Education | | [Rock ID - Stone Identifier](https://appshunter.io/ios/app/rock-id-stone-identifier/id6469999508) | 4.4 (3,040) | Free | Education | | [Shroomify - Mushroom ID USA](https://appshunter.io/ios/app/shroomify-mushroom-id-usa/id1490594715) | 4.7 (2,061) | $3.99 | Education | | [Humane Space: Daily Curiosity](https://appshunter.io/ios/app/humane-space-daily-curiosity/id6443709613) | 4.7 (305) | Free | Education | | [Nerdish: General Knowledge App](https://appshunter.io/ios/app/nerdish-general-knowledge-app/id1552613187) | 4.8 (2,531) | Free | Education | ## More apps by Jacques Brayel Tchouanmoe - [Mineral Search](https://appshunter.io/ios/app/mineral-search/id1560440984) All apps by Jacques Brayel Tchouanmoe: https://appshunter.io/developer/1560440986 ## Related topics [backseat geologist](https://appshunter.io/ios/topics/backseat-geologist) · [geology](https://appshunter.io/ios/topics/geology) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-11.*