NavGPS

Every map, one app. Top-Nav brings topo maps, trail navigation, weather, marine charts, family location sharing and vehicle data together, so you can plan, explore and stay connected without leaving the map.
MAP LAYERS: STACK WHAT YOU NEED
USGS Topo maps
High-resolution satellite imagery
OpenStreetMap vector maps
Street maps
Terrain shading and slope angle, for backcountry and avalanche-aware planning
Streams and rivers overlay
Watershed boundaries
Live weather radar and weather data
Tides
NOAA nautical charts
Speed limits
TRACKS & TRAILS
Record your tracks, follow trails, and find your next route. Save every adventure and share it with friends.
FAMILY CIRCLE
Share your location with the people who matter. See your family on the same map you use to navigate, whether you're on the trail, on the water or on the road.
COMMUNITY
Discover routes, trail conditions and tips from other explorers, and share your own.
VEHICLE DATA
Connect an OBD2 adapter to see real-time engine and performance data alongside your map.
ONE APP FOR EVERY ADVENTURE
Hiking, hunting, overlanding, boating or a road trip with the family: Top-Nav replaces a phone full of apps with one map that does it all.