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Best Rock Map Apps

241+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated November 2026

RockHoundR is the household name in rock map, but it's far from the only option. We track 241+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Rock Map Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1RockHoundR: Rockhounding MapRockHoundR: Rockhounding MapFree4.7★ (149)NoYesOct 2026
2RockdRockdFree4.4★ (187)NoNoOct 2026
3iMineralogist: Rock MapiMineralogist: Rock MapFree5.0★ (2)NoNoOct 2026
4Digger's Map: Find MineralsDigger's Map: Find MineralsFree4.6★ (506)NoYesNov 2026
5RockClue: Rock IdentifierRockClue: Rock IdentifierFree——NoOct 2026
6Mine Locator MapMine Locator MapFree4.6★ (367)YesYesNov 2026
7Rock Identifier: Stone IDRock Identifier: Stone IDFree4.7★ (82K)NoYesNov 2026
8Rushmap - Rockhounding SpotsRushmap - Rockhounding SpotsFree4.5★ (326)NoYesOct 2026

Top Picks for Rock Map

RockHoundR: Rockhounding Map#1

RockHoundR: Rockhounding Map by Ruby Glint Technologies Co., Ltd

Gem, Gold & Crystal Dig Sites
Editor's Choice
🗺️ Navigation
4.7(149 ratings)
FreeIn-App Purchases
#96in Navigation
RockHoundR: Rockhounding Map screenshot 1
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RockHoundR: Rockhounding Map screenshot 5
RockHoundR: Rockhounding Map screenshot 6

Discover thousands of rockhounding, prospecting, and fossil collecting sites with detailed information on legal digging areas and expected conditions. Plan your trips with weather forecasts and nearby amenities, and keep a private log of your finds and routes. The app works offline, ensuring you can access crucial data even without cell service.

Rockd#2

Rockd by University of Wisconsin-Madison Shared Apps

Strong Contender
📚 Education
4.4😊(187 ratings)
Free
Rockd screenshot 1
Rockd screenshot 2
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Rockd screenshot 5
Rockd screenshot 6

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

More Rock Map apps to explore

FAQ about Rock Map

What are the best rock map apps for iPhone?
RockHoundR: Rockhounding Map tops our rock map apps ranking as of November 2026, with a 4.7-star average from 149 App Store ratings, and it's free to download.
Yes — 20 of the top rock map apps we rank are free to download, including RockHoundR: Rockhounding Map and Rockd.
RockHoundR: Rockhounding Map has no ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 241+ rock map apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.