Best Petrology Apps

209+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated June 2026

Out of 209+ petrology apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Petrology

Rock Identifier: Stone ID#2

Rock Identifier: Stone ID by Next Vision Limited

Gem Mineral Crystal Identifier
Strong Contender
📚 Education
4.7😐(68K ratings)
FreeAdsIn-App Purchases
#29in Education
Rock Identifier: Stone ID screenshot 1
Rock Identifier: Stone ID screenshot 2
Rock Identifier: Stone ID screenshot 3
Rock Identifier: Stone ID screenshot 4
Rock Identifier: Stone ID screenshot 5
Rock Identifier: Stone ID screenshot 6

"Discover stones, gems, and crystals with ease using our all-in-one identifier app. Simply snap a photo or upload an image to learn more about your finds instantly. Start exploring today!"

What We Love

  • 🤩 Accurate rock identification
  • 🤓 Extensive information on rocks
  • 🧠 Helpful for learning about rocks
  • 🪨 Great for rock collectors

Room to Improve

  • 💰 Expensive subscription model
  • 🔢 Limited free scans per day
  • 🔍 Inconsistent accuracy, sometimes wrong
StraboField#3

StraboField by The University of Kansas

Formally StraboSpot2
Worth Considering
🔧 Utilities
4.5(18 ratings)
Free
StraboField screenshot 1
StraboField screenshot 2
StraboField screenshot 3
StraboField screenshot 4
StraboField screenshot 5
StraboField screenshot 6

This mobile app streamlines geological fieldwork by allowing users to record observations, capture photos and sketches, and collect orientation data, all from a single, map-centered platform. With its robust features, users can efficiently collect and organize spatially referenced data, work offline, and sync their data to a digital system for seamless analysis and backup.

More Petrology apps to explore

4
RockIn Rock & Mineral identify
RockIn Rock & Mineral identify
RockIn Rock & Mineral identify
organize collection, buy, sell
Free
🔍 Reference
(1.2K)
5
Digger's Map: Find Minerals
Digger's Map: Find Minerals
Digger's Map: Find Minerals
The best geology tool!
Free

Explore the depths with Digger's Map! Uncover valuable minerals, track geological data, and make your discoveries with this top geology app! Start your mapping journey today.

🗺️ Navigation
(460)
6
Stone Identifier - Rock Finder
Stone Identifier - Rock Finder
Stone Identifier - Rock Finder
Diamonds, crystals & gemstones
Free

Find precious stones in your surroundings using advanced image recognition technology. Simply snap a picture of a rock and let the app identify its composition and value instantly. Start exploring the treasures hidden in plain sight today!

📚 Education
(1.3K)
7
Rock ID - Stone Identifier
Rock ID - Stone Identifier
Rock ID - Stone Identifier
Crystal, Mineral, Fossil Guide
Free

Discover, identify, and manage rocks with an AI-powered app. Snap pictures to instantly recognize stones, learn about their characteristics, and build your own rock collection. Subscribe for unlimited access to all features and become a geology expert today.

📚 Education
(2.2K)
8
StraboTools
StraboTools
StraboTools
by The University of Kansas
Free

This application aids geologic field work by analyzing photographs to provide quantitative data on rock fabric and composition. It offers tools to plot fabric orientations, determine color index, and detect edges, helping users in the field and in studying thin sections.

📚 Education
(10)
9
OilPrice: Energy News
OilPrice: Energy News
OilPrice: Energy News
Global News & Market Data
Free

Stay up-to-date with the latest global energy news through OilPrice, your go-to source for all things related to the energy industry. Get real-time updates, expert analysis, and in-depth coverage right at your fingertips. Download now for all your energy news needs!

📡 News
(4.1K)
10
Geology Toolkit: Field Guide
Geology Toolkit: Field Guide
Geology Toolkit: Field Guide
Identify rocks & study geology
Free
📚 Education
(18)
11
Oil Price Live
Oil Price Live
Oil Price Live
Crude Oil, Commodities & News
Free

Stay updated on live crude oil prices and commodities market trends with real-time data and analysis. Track price changes, set alerts, and make informed decisions on the go.

💰 Finance
(12K)
12
Rock Identifier AI - StoneScan
Rock Identifier AI - StoneScan
Rock Identifier AI - StoneScan
Crystals, Gemstones & Diamonds
Free
🔧 Utilities
(21)
13
Rock Identifier: Id by Photo
Rock Identifier: Id by Photo
Rock Identifier: Id by Photo
Mineral & Diamond define guide
Free

Discover the identity of your rocks and minerals instantly with a crystal identifier app using advanced image recognition technology. Simply snap a photo of your specimen and get detailed information about its composition, origin, and properties. Uncover the mysteries of your collection today!

📚 Education
(719)
14
Phone GPS Location Tracker
Phone GPS Location Tracker
Phone GPS Location Tracker
GPS Tracking by number
Free

An advanced family safety and location tracking app that utilizes GPS technology for real-time tracking of family members. Features include real-time tracking, detailed location updates, unlimited member tracking, and battery information. Purchase auto-renewing subscriptions for different durations with pricing options. For more details, visit the Privacy Policy, Terms of Use, and EULA on the app's website.

🔧 Utilities
(1.4K)
15
Stone Identifier : Rock finder
Stone Identifier : Rock finder
Stone Identifier : Rock finder
Rock Identifier
Free

Discover and learn about different rocks by simply taking a photo or uploading one with Stone Identifier. Get instant information about the rock's details and uncover the geological wonders around you.

📚 Education
(191)
16
Rockd
Rockd
Rockd
by University of Wisconsin-Madison Shared Apps
Free

Explore and document your geologic surroundings with an interactive app that provides geologic and geographic information, maps, a 3D virtual globe, and the ability to log your observations and journey through the geologic record. Developed by the Macrostrat lab at the University of Wisconsin - Madison, backed by the National Science Foundation and the Department of Geoscience. For support, contact contact@rockd.org.

📚 Education
(175)
17
Ruby Glint: Rock Identifier
Ruby Glint: Rock Identifier
Ruby Glint: Rock Identifier
Mineral Crystal Gem Identifier
Free

Download this all-in-one app to instantly identify over 6,600 types of rocks, crystals, minerals, and gemstones using a photo. Get detailed information, learn about their properties and value, and connect with the global gemstone community.

📚 Education
(136)
18
Geology of Hawai‘i Volcanoes National Park
Geology of Hawai‘i Volcanoes National Park
Geology of Hawai‘i Volcanoes National Park
by Fire Work Media
Free

This application is a comprehensive glossary of volcanic products and features, showcasing the unique geology of two of the world's most active volcanoes. Explore an array of fascinating geologic terms and features, from lava types to volcanic formations.

📚 Education
(15)
19
Stone Identifier
Stone Identifier
Stone Identifier
Rock, Crystal & Gem Scanner
Free

Identify rocks and crystals with ease using our innovative app. Simply snap a photo and receive instant information about the stone's type and properties. Download now to become a rock expert at your fingertips!

📚 Education
(810)
20
DeepTime for Geology
DeepTime for Geology
DeepTime for Geology
by Hunt Mountain Software
Free

This interactive geological time scale application provides detailed information on time units, including their definitions and color codes, and allows users to search by name or age. It also features a global geological map and offers tips and examples for using time terms, making it a valuable resource for geologists, students, and anyone interested in Earth history.

📚 Education
(7)