Jack Dorsey just released a Bluetooth messaging app that doesn't need the internet

Jack Dorsey just released a decentralized, peer-to-peer messaging app that functions entirely over Bluetooth networks, as reported by CNBC. It's called Bitchat and doesn't need the internet to work, as there are no central servers.

The Twitter co-founder calls it an experiment in "Bluetooth mesh networks, relays and store and forward models, message encryption models and a few other things.” It works by enabling encrypted communication between nearby gadgets. Basically, it sends messages directly from one device to another, but each device is also a node that widens the network a little bit.

and here's an ugly whitepaper describing protocol: https://t.co/AhJ1y0jJdP

— jack (@jack) July 6, 2025

Due to the tech at play here, Bitchat also doesn't require Wi-Fi or cellular service. It's designed to keep working even when the internet is actively being blocked. Messages are stored only on the ...