Photo Credit: Getty Images
Jack Dorsey, the co-founder of Twitter, X now, and CEO of Block, has launched Bitchat, which marks a radical shift in digital messaging. The app bypasses traditional internet infrastructure entirely, operating over Bluetooth mesh networks to enable encrypted, ephemeral conversations, no phone numbers, accounts, or central servers required.
"This is an experiment in privacy, decentralization, and resilience," Dorsey wrote Sunday on X, sharing the beta launch on Apple's TestFlight and linking to a full technical paper on GitHub. His post underscored a vision that's been years in the making: to give users total control over their communications, even in the absence of WiFi or cellular networks.
Built on Bluetooth Low Energy (BLE) mesh technology, Bitchat allows devices within a roughly 30-meter radius to form temporary communication clusters. Messages are passed from phone to phone, "hopping" across devices, to reach their final recipient. In congested areas or events, overlapping clusters can be bridged, expanding the communication radius dramatically.
Messages are encrypted end-to-end, disappear shortly after being read, and are never stored in the cloud. "No central node, no surveillance vector," notes the app's documentation. In contrast to apps like WhatsApp or Messenger, which rely on personal identifiers and centralized data storage, Bitchat operates in complete anonymity.
Dorsey's new venture has drawn comparisons to tools used during the 2019 Hong Kong protests, where similar Bluetooth-based apps helped demonstrators stay connected amid state-imposed internet blocks. The timing is deliberate. Bitchat is intended to offer users a censorship-resistant alternative during blackouts, protests, or crises where infrastructure fails.
Security analyst Eva Galperin of the Electronic Frontier Foundation called the app's design "a big step forward in privacy-preserving communication," noting that the lack of data retention makes it "resilient against both breaches and subpoenas."
The beta supports individual and group chats, with rooms protected by passwords and organized via hashtags. A "store-and-forward" function enables delivery to users who were temporarily offline, while upcoming updates promise to introduce WiFi Direct to increase range and speed. Messages are broken into 500-byte packets to optimize transfer over Bluetooth.
Dorsey's rollout of Bitchat also reinforces his push toward decentralized social technology, following his earlier work with Bluesky. "Communication should be yours, not theirs," he posted, likely a jab at tech giants who monetize user data.
As digital privacy becomes increasingly elusive, Bitchat represents a compelling, if niche, alternative. Whether it scales remains uncertain, but it signals a clear intent: to decentralize communication and return control to the user.
