Browse curated trail guides offline. View detailed maps, photos, and route descriptions. Download trail information directly to your device. Search for by location and difficulty. Save and access trail details without an internet connection.
Prepare for the U.S. with practice questions, study guides, and exam tips. Review civics topics, take practice quizzes, and track progress. Access official resources to prepare for the naturalization interview and .
Calculate time, speed, and distance with interactive charts. Input variables to solve equations. Convert units and view results instantly. Share solutions and save calculation history. Sync with charts for accurate route planning.
Track precise location with Decimal Degrees, DMS, UTM, and MGRS formats. Access topographic maps and route planning. Set waypoints and measure distances. Share coordinates via email or messaging. Sync with GPS devices for real-time navigation.
Provides detailed nautical maps for boating. Plan routes with a route planner. Access AIS data for vessel tracking. Locate marinas, bridges, and locks. Use offline maps for areas without internet. View almanack information for weather and tide data.
Access real-time data including METAR, TAF, and NOTAM reports for 50,000+ airports. View satellite maps and decoded information. Filter nearby airports by runway length and METAR/VFR availability. Save favorites and organize into groups.
Explore planets, track celestial events, simulate systems
Explore the with 3D models of planets, moons, and asteroids. Rotate and zoom objects for detailed views. Learn about celestial bodies through interactive encyclopedia entries.
The app provides real-time Sun and Moon data, including sunrise, sunset, moonrise, and moonset times globally. It features a time-chart and interactive map for accessing celestial data and exploring seasonal shifts.