Best Geology Apps

248+ iOS apps curated and reviewed

4.6 avg rating
19 free apps
Updated August 2026

The best geology apps on iPhone average 4.6★ across 248+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.

Compare top Geology Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1RockdRockdFree4.4★ (183)NoNoAug 2026
2Backseat GeologistBackseat GeologistFree4.7★ (65)NoYesSep 2026
3DeepTime for GeologyDeepTime for GeologyFree5.0★ (7)NoNoAug 2026
4Geology Toolkit: Field GuideGeology Toolkit: Field GuideFree4.6★ (25)NoYesAug 2026
5Rock Identifier: Stone IDRock Identifier: Stone IDFree4.7★ (79K)NoYesSep 2026
6Geology QuizGeology QuizFree4.4★ (38)YesYesSep 2026
7GeomasterGeomasterFree5.0★ (2)NoNoAug 2026
8GeologyGeologyFreeYesNoAug 2026

Top Picks for Geology

Rockd#1

Rockd by University of Wisconsin-Madison Shared Apps

Editor's Choice
📚 Education
4.4😊(183 ratings)
Free
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Discover and document the geology around you. Access global geologic maps, 3D globes, and detailed summaries of your surroundings. Contribute your own observations and track your exploration of Earth's geologic history.

What We Love

  • 🗺️ Comprehensive geological maps with detailed information
  • 💡 Innovative integration of peer-reviewed references and literature
  • 🧭 Built-in Brunton compass and clinometer tools
  • 📱 User-friendly interface and intuitive navigation
  • 🌍 Global coverage with paleomaps and stratigraphic data
  • 👥 Social features for sharing outcrops and check-ins
  • 💰 Free app with optional donation support
  • 📚 Rich educational resource for students and professionals
  • 🎯 Accurate geological unit identification by location
  • ⛰️ Terrain-based DEM overlay for better context

Room to Improve

  • 🐛 Black map display issues in offline and online modes
  • 📍 GPS tracking and real-time position updates failing
  • 🔌 Offline functionality severely limited or broken
  • 🔐 Persistent login requirement without password saving
  • ⚠️ Error dialogs that won't dismiss
  • 📄 Literature articles and references not loading
  • 🔄 App refreshes and resets location when switching apps
  • 🎨 Similar color coding for adjacent formations
  • 📱 UI elements obscured on newer iPhone models
  • 🌐 International maps lack detail and accuracy
  • ⏱️ Taxa tab slow to load
  • 🔍 Fossils button non-functional
Backseat Geologist#2

Backseat Geologist by Blake Morgan

Your Personal Geology Guide
Strong Contender
🗺️ Navigation
4.7(65 ratings)
FreeIn-App Purchases
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This app provides audio explanations of the geology visible from your car. Explore geological features, create custom routes, and learn about earth history on the go. Offline access and adjustable audience settings enhance the learning experience.

DeepTime for Geology#3

DeepTime for Geology by Hunt Mountain Software

Worth Considering
📚 Education
5.0(7 ratings)
Free
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Explore an interactive geological time scale with detailed information on each unit, including GSSP definitions and color codes. Search for terms and view GSSPs on a global map. Ideal for geologists, students, and Earth history enthusiasts.

More Geology apps to explore

FAQ about Geology

What are the best geology apps for iPhone?
Rockd tops our geology apps ranking as of August 2026, with a 4.4-star average from 183 App Store ratings, and it's free to download.
Yes — 19 of the top geology apps we rank are free to download, including Rockd and Backseat Geologist.
Rockd has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 248+ geology apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Rockd allows users to explore and learn about the geologic record of their surroundings. It provides access to global geologic maps, 3D virtual globes, and summaries of local geology. Users can also contribute their own field observations and track their exploration.
Key features include instant access to geologic summaries, interactive global geologic maps with offline caching, a 3D virtual globe, paleogeographic map exploration, stratigraphic column viewing, and the ability to log field observations with strike/dip and trend/plunge data.

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