MGRS everywhere
Grid references on the status bar, in every readout and on printed map sheets, so a position read over the radio lands where it should.
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Solutions
Built for work where the network ends.
The same app serves a search team, an incident command post, a survey crew, a drone operator and a solo hiker. What changes is which tools you use.
Search and rescue
Plan, assign, search, document and export.
Searches run in shifts, across agencies, often far from coverage. ZYRNTOPO keeps the plan, the teams and the record on every device, with MGRS on every screen and TAK support for searches with other agencies.
Illustrative exercise on the Muir Snowfield, Mount Rainier. Not incident data.
Every team on one map
Team Sync, nearby TAK devices and a self-hosted TAK server put field teams and partner agencies on the same map.
Export the record
Tracks, clues and segments export to GPX, KML and GeoJSON for the after-action report and other mapping tools.
Emergency management
One shared map, no data center needed.
An incident command post needs the same map as its teams, often before the network is back. ZYRNTOPO and ZYRN Workstation keep the map, terrain and plan on each device and sync when a connection is available.
- ZYRN Workstation on the desk, ZYRNTOPO on phones and tablets, one account
- Add your agency's own map services (WMS, WMTS, WFS)
- True-scale PDF maps for briefings and the field
- TAK support for incidents with other agencies Pro
Field work and survey
Measure, collect and exchange data offline.
Draw and measure on offline basemaps and terrain, photograph and annotate what you find, and move it all in and out in the formats your office already uses.
- Lines, areas, markers and freehand drawing
- Accurate distance and area, metric and imperial
- Photo waypoints with position and bearing
- GPX, KML, GeoJSON and CSV in and out
Drone operations
See live drone positions on your map.
ZYRNTOPO is the map side of a drone flight, not the flight controller. MAVLink drones show up on the same map as teams, segments and terrain, so the people planning the search can see where the aircraft is.
- MAVLink over UDP and serial Pro
- Drone position and status on the map
- Terrain and line of sight for planning
- The ZYRN Workstation drone tool with in-app video Pro Beta
Backcountry travel
Plan the route, save the area, then go.
Everything a solo trip needs is free: offline maps, GPS navigation, 3D terrain, slope shading for avalanche terrain and printed map sheets for the pack. No subscription and no account to start.
- Unlimited offline downloads
- Slope shading from 27 to 60 degrees and above
- Tracks, routes, bearings and distance
- Works with no signal, from the trailhead on
Try it on the places you go.
Free on every platform. Pro when your team needs Team Sync.