Jack Dorsey Launches Bitchat: A New Bluetooth-Based Messaging App That Works Without Internet or SIM Cards
Jack Dorsey, co-founder and former CEO of Twitter, has unveiled a revolutionary messaging application called Bitchat, designed to operate entirely on Bluetooth mesh networks—no internet, SIM card, server, or email required.
Currently in beta testing via Apple TestFlight, Bitchat is being positioned as an experimental, privacy-first, and censorship-resistant communication tool, ideal for use in regions affected by internet blackouts, surveillance, or network disruptions.
“It’s a personal experiment in Bluetooth mesh networks, relays and store-and-forward models, message encryption models, and a few other things,” Dorsey explained.
How Bitchat Works
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Peer-to-peer Bluetooth communication: Phones nearby can exchange encrypted messages using Bluetooth.
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No central server: Messages are stored only on users’ devices and disappear by default, enhancing privacy and reducing traceability.
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Bridge devices: Mobile phones act as nodes, passing messages across clusters and enabling long-distance communication without traditional networks.
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No account creation: Users don’t need to register with phone numbers or emails—removing all identifiable metadata.
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One-on-one encrypted chats: Secure and ephemeral messaging is supported out-of-the-box.
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Group chats via password-protected “rooms”: Users can join group conversations using hashtags and optional access codes.
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Store and forward model: Messages can be held temporarily and forwarded to users once they come back online.
A future version is expected to include Wi-Fi Direct support for faster peer-to-peer communication over wider areas.
Why It Matters
Bitchat draws heavy inspiration from tools like FireChat, used by protesters in Hong Kong in 2019 to circumvent government surveillance and internet shutdowns. Dorsey’s app takes that concept further by integrating strong encryption, decentralization, and offline-first architecture.
This release continues Dorsey’s vision of a user-owned internet, following his backing of:
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Damus (built on Nostr protocol)
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Bluesky (a decentralized alternative to Twitter)
Open Source and Privacy-Focused
Bitchat’s open-source white paper is now available on GitHub, inviting developers to study, test, or contribute to the evolving project. With zero user tracking, no data retention, and a serverless architecture, the app aligns with growing demands for digital sovereignty and surveillance-free communication.
