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Best Usgs.gov Apps

250+ iOS apps curated and reviewed

4.7 avg rating
19 free apps
Updated November 2026

From beginner-friendly picks to power-user tools, our usgs.gov list covers 250+ iPhone apps updated through November 2026. Compare ratings, prices, and screenshots in one place.

Compare top Usgs.gov Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1National Park ServiceNational Park ServiceFree4.9★ (137K)NoNoNov 2026
2USGS River Levels & FlowsUSGS River Levels & FlowsFree—YesYesOct 2026
3National Park Trail GuideNational Park Trail GuideFree4.5★ (1.5K)NoNoOct 2026
4Topo Maps USTopo Maps USFree4.4★ (215)NoNoOct 2026
5The Weather Channel - RadarThe Weather Channel - RadarFree4.8★ (6.1M)YesYesNov 2026
6USA Pocket MapsUSA Pocket MapsFree4.4★ (129)YesNoOct 2026
7GeoMind - 3D Terrain AnalysisGeoMind - 3D Terrain AnalysisFree—NoYesOct 2026
8GeoCAD: CAD, DGN & GPSGeoCAD: CAD, DGN & GPSFree—NoYesOct 2026

Top Picks for Usgs.gov

National Park Service#1

National Park Service by National Park Service

The official app of 420+ parks
Editor's Choice
✈️ Travel
4.9😊(137K ratings)
Free
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National Park Service screenshot 6

Explore over 420 national parks with interactive maps, self-guided tours, and essential on-the-ground information. Download park content for offline use, plan your visit with amenity and fee details, and stay updated on news and events.

What We Love

  • 👍 Helpful information on national parks
  • 🚀 Useful offline features
  • 💡 Ability to create lists of visited/to-visit parks
  • 🗺️ Interactive maps and GPS guidance
  • 📷 Photo features like creating postcards

Room to Improve

  • 🐛 Downloading issues and app crashes
  • 🔍 Difficulty finding specific information or navigating the app
  • 🗺️ Inconsistent or incomplete map and trail data
  • 🕰️ Outdated information on park hours and closures
  • 🔍 Lack of organization and filtering options
National Park Trail Guide#3

National Park Trail Guide by Adventure Projects Inc.

National parks guide and maps
Worth Considering
✈️ Travel
4.5😐(1.5K ratings)
Free
National Park Trail Guide screenshot 1
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Discover and explore national parks with detailed trail information, offline maps, and live GPS tracking. Plan your perfect trip with hike difficulty ratings, curated lists, and essential park insights. Never get lost and find family-friendly trails or hidden gems.

What We Love

  • 🚀 Offline maps and GPS
  • 👍 Detailed trail information
  • 📷 Helpful photos and ratings
  • 🗺️ Accurate location tracking
  • 🗓️ Useful to-do list feature

Room to Improve

  • 🐛 Crashes and freezes
  • 🚫 Missing parks and trails
  • 📱 Compatibility issues
  • 🔍 Difficult to navigate app
  • 🔍 Outdated information

More Usgs.gov apps to explore

FAQ about Usgs.gov

What are the best usgs.gov apps for iPhone?
National Park Service tops our usgs.gov apps ranking as of November 2026, with a 4.9-star average from 137K App Store ratings, and it's free to download.
Yes — 19 of the top usgs.gov apps we rank are free to download, including National Park Service and USGS River Levels & Flows.
National Park Service has no ads and has no in-app purchases, according to its App Store listing as of November 2026.
We track 250+ usgs.gov apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.