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NewNearby TAK devices on the same network now join automatically, with chat and map objects in both directions. How local TAK works

ZYRNTOPO

Platform
Maps, terrain, your markers and team links all live on the device. Here is how the pieces fit.
How it works
Read the terrain before you goSlope shading, elevation profiles and visibility, on the device.
Products
A field app for every device you carry and a 3D desktop app, on one account and one license.
All downloads
ZYRN Workstation on the desk3D terrain, a ribbon of tools and a live status bar.
Solutions
The same app serves a search team, a survey crew and a solo trip. What changes is which tools you use.
All solutions
Save the area before the call-outTiles and terrain for the whole search area, kept on every device.
Resources
Guides, downloads and a community of people who use ZYRNTOPO in the field.
Read the documentation
Company
ZYRNTOPO is designed and built in Washington State by Grange Dev Group.
About the company

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Offline maps, navigation and terrain tools for the field.

Products

ZYRNTOPO
ZYRN Workstation
ZYRNTOPO Pro
Web app
TAK server

Platform

Offline
Terrain and 3D
Teams
Formats and links
Plugins

Solutions

Search and rescue
Emergency management
Field work and survey
Drone operations
Backcountry travel

Resources

Documentation
Downloads
System requirements
Community forum
Data sources

Company

About
Support
Security
Privacy policy
Terms of use
Refund policy

ZYRNTOPO is a navigation aid. It does not replace training, judgment, or a personal locator beacon. Carry backup navigation and leave your plan with someone.

Google Play is a trademark of Google LLC. Amazon Appstore is a trademark of Amazon.com, Inc. ATAK, TAK, MAVLink and Meshtastic are marks of their respective owners. Mentioning them here only means ZYRNTOPO works with them, not that we are affiliated with or endorsed by them.