Columba

Native Android off-grid messaging app over Bluetooth, LoRa mesh, or TCP.

Mobile appfreeGlobal

Columba is a native Android messaging app that works over Bluetooth, LoRa mesh radio, or TCP using the Reticulum networking stack, letting people communicate without cell service or internet. It's built for hikers, preparedness users, and anyone needing off-grid messaging.

Website

Full match profile

Behind the summary, Matchbox keeps a richer profile of Columba - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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