ZYRNTOPOTopographic mapping and navigation for the field.
Save an area before you leave. Maps, terrain, tracks and field tools keep working on the device with no signal, on Android, Windows, Linux and in the browser.
Features
- Maps
- 16 base layers — topographic, satellite, hybrid, nautical and land-status overlays. Vector and raster tiles.
- Navigation
- GPS position, track recording, routes, waypoints, bearings and distance. MGRS, UTM and latitude/longitude.
- Terrain
- 3D terrain, elevation profiles, slope shading, aspect, viewshed and radio line-of-sight.
- Offline
- Select an area, download its tiles and terrain, and keep them on the device. Storage is persistent — the system will not reclaim it.
- Drawing and measurement
- Lines, polygons, markers and freehand annotation. Area and distance, in metric or imperial units.
- Team
- Shared positions, markers and tracks over the internet, over a local network, or through a TAK server you run yourself.
- Data
- Import and export GPX, KML/KMZ, GeoJSON and CSV. Print a true-scale map sheet for the pack.
- Privacy
- No advertising and no third-party trackers. Map data stays on the device unless you sync it.
Platforms
| Platform | Requirement | Delivery | Get |
|---|---|---|---|
| Android | 7.0 or later | Google Play, Amazon Appstore, APK | Download |
| Windows | 10 or 11 — x64, ARM64, x86 | .exe installer, .msi for managed deployment | Download |
| Linux | x86_64 or ARM64 | .deb, .rpm, .pacman, AppImage, install script | Download |
| Browser | Any current browser with WebGL2 | app.zyrntopo.com, installable as a PWA | Open |
Pricing
Free
$0
- Offline maps and 16 base layers
- GPS, tracks and navigation
- Draw, measure and markers
- GPX, GeoJSON, KML and CSV
- No account required
Pro
$100 once · or $5/mo
- 3D terrain, viewshed and radio line-of-sight
- Unlimited offline downloads
- Premium overlays and Team Sync
- One licence on all four platforms
- Buy once and it never expires — no renewal, no seat count