10 juil. 2025
It is a decentralised, peer-to-peer communication app that operates exclusively on Bluetooth mesh networks, without the need for the internet.
Twitter Founder Jack Dorsey’s latest product, Bitchat, is in the beta testing phase currently, with a live version available on TestFlight.
The app does not need central servers, mobile numbers, email IDs or personal account creation to function. It facilitates encrypted messaging between nearby devices that form local Bluetooth clusters when users move around physically. These clusters direct the flow of messages between devices, enabling communication with users beyond a specific physical range, without relying on Wi-Fi or cellular service.
‘Bridge’ devices can connect overlapping clusters and expand the Bluetooth mesh over larger distances. Messages are relayed across devices, thus crossing a normal Bluetooth range.
Messages are stored on devices and are deleted by default, without being sent to a central server, thus ensuring privacy. Users can create password-protected group chats, called Rooms, named using hashtags.
Dorsey plans to add WiFi Direct for faster messaging in a future update.
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