Best Geology Apps

222+ iOS apps curated and reviewed

4.6 avg rating
19 free apps
Updated May 2026

The best geology apps on iPhone average 4.6β˜… across 222+ titles β€” we've ranked them by what real users actually keep on their phones. Updated May 2026.

Top Picks for Geology

Backseat Geologist#1

Backseat Geologist by Blake Morgan

Your Personal Geology Guide
Editor's Choice
πŸ—ΊοΈ Navigation
0.0(0 ratings)
FreeIn-App Purchases
Backseat Geologist screenshot 1
Backseat Geologist screenshot 2
Backseat Geologist screenshot 3
Backseat Geologist screenshot 4
Backseat Geologist screenshot 5
Backseat Geologist screenshot 6

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.

Rockd#2

Rockd by University of Wisconsin-Madison Shared Apps

Strong Contender
πŸ“š Education
4.4😊(183 ratings)
Free
Rockd screenshot 1
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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

  • πŸ—ΊοΈ Comprehensive geological maps with detailed information
  • πŸ’‘ Innovative integration of peer-reviewed references and literature
  • 🧭 Built-in Brunton compass and clinometer tools
  • πŸ“± User-friendly interface and intuitive navigation

Room to Improve

  • πŸ› Black map display issues in offline and online modes
  • πŸ“ GPS tracking and real-time position updates failing
  • πŸ”Œ Offline functionality severely limited or broken
DeepTime for Geology#3

DeepTime for Geology by Hunt Mountain Software

Worth Considering
πŸ“š Education
5.0(7 ratings)
Free
DeepTime for Geology screenshot 1
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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

4
Geology Quiz
Geology Quiz
Geology Quiz
Geology and Geography Science
Free

Test your knowledge of Earth sciences with this interactive trivia app. It offers structured learning, engaging quizzes, and both solo and multiplayer game modes to make learning geology fun and effective for all levels.

Comprehensive geology topicsStructured learning by chaptersInteractive multiple-choice quizzes
πŸ“š Education
(35)
free with in-app purchases
5
Geology Toolkit: Field Guide
Geology Toolkit: Field Guide
Geology Toolkit: Field Guide
Identify rocks & study geology
Free

Identify rocks with AI and gain a deep understanding of their composition and formation. This app is designed for students and enthusiasts to learn geology beyond simple identification, offering clear explanations and visual tools for study and fieldwork.

AI-powered rock identificationDetailed mineral composition insightsStudent-friendly explanations
πŸ“š Education
(21)
free with in-app purchases
6
Rock Identifier: Stone ID
Rock Identifier: Stone ID
Rock Identifier: Stone ID
Gem Mineral Crystal Identifier
Free

Instantly identify rocks, minerals, and gemstones by taking a photo. Access a comprehensive encyclopedia with detailed information on each stone, learn to distinguish real from fake gems, and explore their properties. The app also includes a metal detector and expert consultation.

Photo-based rock identificationStone and crystal encyclopediaReal vs. fake gemstone guide
πŸ“š Education
(73K)
freemium
7
Mine Locator Map
Mine Locator Map
Mine Locator Map
Abandoned Mines & Prospects
Free

Discover historical and active mines, prospects, and mineral deposits across the United States. This app provides a map-based interface to locate various mining-related sites without requiring registration or subscriptions.

Map of mines and prospectsLocate abandoned minesLocate active mines
πŸ” Reference
(329)
free with in-app purchases
8
Geomaster
Geomaster
Geomaster
Earth Geology Rocks Mineral id
Free

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 CompassTrend and Plunge CompassGeological Time Scale
πŸ“š Education
(2)
free
9
EarthViewer
EarthViewer
EarthViewer
by Howard Hughes Medical Institute
Free

Explore Earth's 4.5 billion-year history with this interactive time machine. See how continents, oceans, and climate have changed over eons, track landmarks and fossils, and visualize scientific data like temperature and biodiversity. Discover the dynamic evolution of our planet.

Continental reconstructions over billions of yearsSea level and temperature mapsTrack landmark and fossil movements
πŸ“š Education
(101)
free
10
A Guide To Crystals - The CC
A Guide To Crystals - The CC
A Guide To Crystals - The CC
The Citrine Circle
Free

Explore a comprehensive A-Z guide to over 500 crystals and minerals, offering geological and metaphysical details. Catalog your personal collection with photos, notes, and interactive 3D models. Discover new crystals through quizzes, games, and advanced search filters.

A-Z crystal and mineral databaseGeological and metaphysical informationPersonal crystal collection cataloging
πŸ” Reference
(4.1K)
freemium
11
Digger's Map: Find Minerals
Digger's Map: Find Minerals
Digger's Map: Find Minerals
The best geology tool!
Free

Discover locations of gold, silver, gemstones, and other minerals with a vast global database. This tool provides detailed information and powerful search capabilities for enthusiasts and prospectors.

Global mineral database300,000+ locations60+ minerals listed
πŸ—ΊοΈ Navigation
(460)
free with in-app purchases
12
Geology Dictionary - Offline
Geology Dictionary - Offline
Geology Dictionary - Offline
Geological Terms with meaning
Free

Access a vast offline dictionary of geological terms with definitions, synonyms, and audio pronunciations. Learn about Earth sciences, save favorite words, and test your knowledge with quizzes. Share terms easily with friends.

Offline access to 50,000+ geological termsDefinitions, synonyms, and example sentencesAudio pronunciations for over 5,000 terms
πŸ“š Education
(5)
free with in-app purchases
13
Geology β€” dictionary
Geology β€” dictionary
Geology β€” dictionary
The science of geology
Free

This app serves as a comprehensive personal guide for learning geology, offering a dictionary of terms with flashcards and visual explanations. It also includes video lectures and a detailed textbook covering major geological topics.

Dictionary with key terms and definitionsFlashcards for memorizationVisual explanations of concepts
πŸ“š Education
(1)
free with in-app purchases
14
Stereonet Mobile
Stereonet Mobile
Stereonet Mobile
by Richard Allmendinger
Free

This app assists geologists in collecting, visualizing, and analyzing geological orientation data. It offers automatic data entry using device sensors and augmented reality, manual input options, and various plotting and calculation tools for geological features.

Automatic data entry via device orientationAugmented reality for strike and dip measurementManual data entry via stereonet or text fields
πŸ“š Education
(13)
free
15
StraboField
StraboField
StraboField
Formally StraboSpot2
Free

This mobile application helps geologists record field observations, capture data like photos and sketches, and create geologic maps. It supports various geological subdisciplines and allows for offline use with data syncing capabilities.

Record field data with photos, sketches, and notesCollect georeferenced orientation and spatial dataUse custom or built-in basemaps offline
πŸ”§ Utilities
(19)
free
16
FieldMove Clino
FieldMove Clino
FieldMove Clino
by Petroleum Experts Limited
Free

This app transforms your iPhone into a digital compass-clinometer for geological data capture. It allows for efficient measurement of planar and linear features, georeferenced photo and note storage, and offline map support for fieldwork.

Digital compass-clinometerGPS location and orientation sensorsCapture georeferenced photos and notes
πŸ“Š Productivity
(19)
free
17
GeoLOG - geological mapping
GeoLOG - geological mapping
GeoLOG - geological mapping
Geological mapping of Poland
Free
πŸ“š Education
(0)
18
Mancos
Mancos
Mancos
by Hunt Mountain Software
$2.99

Explore the geology of the United States and other regions with this app. Access state geological maps, formation data, and stratigraphic columns. Discover local fossil collections directly from your device.

Interactive geological mapsSearchable by name or GPSState-level geological data
πŸ“š Education
(13)
paid
19
Geology Clinometer: GeoCompass
Geology Clinometer: GeoCompass
Geology Clinometer: GeoCompass
Measure and make notes
Free

Measure geological structures with GPS and weather data. Capture photos, videos, and notes with integrated information. Organize data into projects and export for analysis.

Plane and line structure measurementSupport for WGS84, UTM, MGRS coordinate systemsPhoto, video, and text note capture
πŸ“Š Productivity
(1)
ad-supported
20
Geology for Kids: Planet Earth
Geology for Kids: Planet Earth
Geology for Kids: Planet Earth
Volcanos, Earthquakes & Rocks
Free

Explore Earth's geology through interactive lessons and trivia. Learn about volcanoes, earthquakes, and tectonic plates with a friendly science teacher. Play offline and test your knowledge in a safe, ad-free environment.

Interactive lessonsScience triviaLearn by reading, listening, and touching
πŸ“š Education
(84)
free with in-app purchases

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