Neatline vs mapper.one

Neatline turns the georeferenced PDF maps you already use — CalTopo, USGS, Forest Service, any GeoPDF — into a live GPS map in your pocket. See exactly where you are on your own maps, even with no cell signal. BUILT FOR THE FIELD • Your location, live: a blue dot with a heading arrow shows where you are and which way you're facing, right on your map. • Fully offline: maps and your data live on your device — no signal needed. • Open any GeoPDF from Files or Mail with "Open in Neatline." MAKE A MAP ANYWHERE • Map My Location builds a map of where you're standing in seconds — topo, satellite (US), or worldwide street. MARK IT UP • Drop colored flag waypoints with names, notes, and photos. • Record tracks — keeps logging with your phone locked or in your pocket. • Measure distance and area, or draw lines and polygons. • Copy coordinates; share/export waypoints and tracks as KML/KMZ. STAY ORIENTED • A dim real-world street map behind your sheet shows where it sits in the world. • Carry many maps? The list flags which ones cover where you're standing. No account. No subscription. Just your maps and your location.

mapper.one is a free, open-source field mapping app built for hikers, overlanders, and backcountry explorers. Standing on the shoulders of OpenStreetMap and the global open-data community. IMPORT YOUR MAPS Bring in routes from any source — GPX from Garmin or Strava, KML/KMZ from Google Earth or Avenza, and GeoJSON from any GIS tool. Every feature, waypoint, and track renders immediately on a full-screen map. OFFLINE-FIRST Download map tiles for any region before you leave signal. Saved tiles live in durable device storage so they survive cache pressure — your maps are there when the trail goes dark. RECORD YOUR ROUTE Hit record and mapper.one traces your path with timestamps and elevation data. Drop waypoints mid-trip with photos and notes — field markers that stay attached to the track. COMMUNITY LIBRARY Browse thousands of trails and overlanding roads contributed by the Adventure Collective and the open-data community. Filter by region, search by name, or let the app find routes near you. Download any route to your library with a single tap. SHARE WHAT YOU FIND Publish your recorded tracks to the community so others can follow in your footsteps. Open-source, open-access, community-first. Free forever. No ads. No subscriptions. No account required. Built with deep gratitude to OpenStreetMap contributors, the Leaflet project, and every surveyor and trailblazer who mapped the wild places before us.