Built for where
the signal ends.
MastZero makes tools for people and devices out in the field: maps that work over mesh radio, dashboards for the sensors you build, and honest reviews of the gear in between.
A mast is how a signal gets up. Zero is where you start.
The zero in our mark is crossed through, the way engineers write it so it's never mistaken for the letter O. It's a small promise: precise, readable, no guessing.
What we hold to.
Fast
Set up in seconds, not afternoons. If it takes a manual to start, we haven't finished.
Works off the grid
Built for the trail, the site and the workbench. The signal drops; the tools don't.
Honest
We say what works offline, what it costs and what can fail. Reviews included.
Open where it counts
Our telemetry stack and agent are open source. Radios run open firmware.
The log.
- AUG 2025Data V2 API launches; ingest rewritten from Python to Go.DATA
- AUG 2025The telemetry stack goes open source.DATA
- JAN 2026Lighthouse, the one-command telemetry agent, ships.DATA
- 2026Maps shown on stage at LEAP 2026, Riyadh.MAPS
- 2026Flows, Relay Bridge and MeshCore support arrive in Maps.MAPS
Say hello.
Partnerships, press, devices to review or a project that needs a mesh. Logos and colours are on the brand page.