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Rockd

Rockd

by University of Wisconsin-Madison Shared Apps

183 ratings
89 reviews
📚 Education
✈️ Travel
Free

Details

  • Released
  • Updated
  • September 17, 2016
  • June 12, 2026

Features

Developer

University of Wisconsin-Madison Shared Apps
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About

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.

✓Interactive global geologic maps
✓3D virtual globe exploration
✓Field observation logging
✓Offline map caching
✓Paleogeographic map access
✓Stratigraphic column viewing
✓Geologic literature integration
Show original description

What users say

Summarized from real user reviews of Rockd. Based on 183 reviews and a 4.4/5 average, it highlights the 10 positives and 12 negatives reviewers mention most about this Education app.

Positive things

  • 🗺️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

Negative things

  • 🐛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
See all reviews

What's New in Rockd

4.2.0

June 12, 2026

- Update login workflows - Emphasized map style at high zoom levels - Swipe-to-dismiss for map and column detail panels - Improvements to map caching system

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User reviews

Most RecentHighest RatedLowest Rated

Beyond amazing!

OK, this app is so underrated because this has to be one of the best apps I’ve ever seen for topography fossils and minerals on top of history and a live recording of elevation and what kind of rocks are around you at all times it’s extremely helpful and fascinating
cyberwolfdragoncyberwolfdragon

Offline check-ins don’t work

Overall the app is good. However some recent update has broken check-ins when in airplane mode. The map shows up as black. Also an error dialog pops up and refuses try go away no matter how many times you dismiss it.

When online also, the map is showing up as black, and I cannot fix the location of my offline checkin
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pleaseimproveyourperformancepleaseimproveyourperformance

GPS not tracking !

GPS not tracking!
WeCare!WeCare!

Incredible app!

Shows you everything from the types of rock around you, the taxa near you, your stratigraphic unit and everything. Absolutely recommend to everyone even if you aren’t a rock hound.
J JaguatJ Jaguat

Essential

An excellent implementation of geological maps on the go and a great first pass tool for any field work
Walker_WeylandWalker_Weyland
See 84 more reviews

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User experience

🐞

Reported Bugs

17 issues

Black map display in airplane mode and online

Bug

Persistent error dialogs that cannot be dismissed

Bug

GPS not tracking in real-time

Bug

Offline check-ins not syncing properly

Bug

Sign-up page jumps between fields and login page

Bug

Fossils button not working

Bug

Map returns to user location after viewing check-ins

Bug

App crashes and becomes unresponsive

Bug

Data loss after app reinstall or logout

Bug

Maps fail to load after recent updates

Bug

Location search functionality broken

Bug

Android version windows not visible

Bug

Straight lines appear when zooming

Bug

Formations stop at state lines

Bug

Check-in screen stuck with no exit option

Bug

App won't load after initial use

Bug

Geological overlay won't upload to base map

Bug
✨

Requested Features

16 requests

Follow/friend mechanic to track other users' check-ins

Feature

Rock identification tool from photo uploads

Feature

Offline map download with customizable zoom levels

Feature

Stereonet tool for structural geology

Feature

Groundwater/aquifer information section

Feature

Map legend/key for geological features

Feature

Spanish language support

Feature

Ability to move dashboard to different locations

Feature

Latitude/longitude search functionality

Feature

Multiple photo attachments per location

Feature

Strike and dip data visualization

Feature

Fault line labeling on maps

Feature

Better Android version compatibility

Feature

Tutorial or short course for advanced features

Feature

Black contact lines between formations toggle

Feature

Personal photo upload focus with mineral variations

Feature

FAQ

What does the Rockd app do?

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.

What are the key features of Rockd?

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.

Is Rockd free to use?

Yes, Rockd is a free application. It does not have in-app purchases or advertisements, making it accessible for all users interested in geology.

What kind of geologic information can I find on Rockd?

You can find summaries of your current location's geology, access over 290 interactive global geologic maps, explore paleogeographic maps, and view stratigraphic columns where available. The app also integrates with published literature mentioning mapped geologic units.

Can I use Rockd offline?

Yes, you can save maps for use in the field with the app's built-in map caching system. You can also add your own field observations offline, which will be saved and can be tagged with relevant databases.