Spotrum vs Zello
Zello turned phones into radios and owns that category's history. Spotrum builds the next layer on top of push-to-talk: location, escalation and proof. The honest split:
A mature, battle-tested PTT replacement for two-way radios, popular with drivers and dispatch. If all you need is a walkie button that always works, Zello earned its reputation.
Side by side
The map is the operations screen
Every Spotrum room carries a live map: crew positions in real time, meet-here points with distance and ETA, events pinned to places — on every plan, not as an enterprise add-on.
PTT that escalates
The same room turns into a video conference or a moderated stage in one tap — screen share, co-hosts, waiting room. With a radio app, the moment talk gets complicated you switch tools.
Channels that leave proof
A Spotrum session can end in a speaker-named transcript and a cryptographically signed PDF — dispatch decisions and shift briefings become verifiable records, not memories.
Browser guests, EU jurisdiction
Guests join from a browser tab without accounts; E2EE private rooms on every plan; the operator is an EU company on EU servers, GDPR-native.
As a plain radio replacement, both will serve you. When the channel needs a map, an escalation path and records that hold up — that's what Spotrum is for.