Jack Dorsey Launches ‘Bitchat’ Bluetooth Messaging Tool on App Store
Jack Dorsey, co‑founder of Twitter (now X) and CEO of Block, has released Bitchat mesh, a privacy-focused messaging app, on the Apple App Store. Designed as a weekend project, the iOS version launched after a beta phase and quickly reached top placements in the App Store’s social networking category in the U.S.
Despite the excitement, Dorsey confirmed an iOS bug is currently blocking Android connectivity. A fix has already been submitted to Apple for approval.
Messaging Without Internet, Logins, or Servers
What sets Bitchat apart is its use of Bluetooth Low Energy mesh networking, allowing devices within roughly 100–300 meters to relay encrypted messages peer‑to‑peer, even without Wi‑Fi or cell service. There are no central servers, no profiles, and no data collection—just a randomized @ handle that users can personalize. The app includes optional password‑protected channels and a “Panic Mode” that wipes data when the logo is triple‑tapped.
This decentralized structure echoes past projects like Bridgefy and FireChat, which gained popularity among protesters operating under internet shutdowns. Bitchat can extend message reach beyond a single Bluetooth link by relaying through intermediate devices in a mesh.
Built in a Weekend—and Vibe‑Coded with AI
Dorsey revealed that he coded Bitchat in just one weekend using Goose, Block’s open‑source AI coding assistant. The rapid build reflects his ongoing interest in experimental, decentralized tools. The project lives on GitHub, where Dorsey also shared a white paper describing mesh protocols, encryption, and store‑and‑forward models.
Security Questions Cloud the Buzz
Security experts caution that Bitchat has not undergone external audits. Researcher Alex Radocea pointed out a vulnerability: users can impersonate others within chats if the protocol isn’t hardened—raising fundamental questions about its security claims. Dorsey himself acknowledged that the app may contain flaws, given its early-stage status.
Additionally, the Google Play Store currently hosts many counterfeit apps using the “Bitchat” name. Dorsey has warned users to avoid unofficial versions, noting that the official Android release is still limited to GitHub sideloading for now.
Use Cases & Limitations
Bitchat is ideal for off-grid communication—think festivals, protest zones, natural disasters, or remote locations with no signal. It supports text chats, channel features, and even experimental offline Bitcoin transfers via CASHU in early tests.
Yet, its reliance on physical proximity means global messaging is not feasible, and adoption hinges on having nearby users running the app. It’s also notready for sensitive or high-stakes conversations until its security undergoes peer-reviewed testing.
Looking Ahead
Bitchat marks a notable shift toward infrastructure-light messaging, reinforcing Dorsey’s broader push into decentralized technology and privacy tools. Its App Store debut might signal greater acceptance of mesh-based apps in mainstream platforms. Developers are watching to see if future updates incorporate Wi‑Fi Direct, improved range, and better cross-platform support.
While it may not replace apps like WhatsApp or Signal for daily use, Bitchat is a bold step toward user-controlled, server-free communication. It could evolve into a niche solution for resilience-minded users in events where connectivity is not guaranteed—or even actively blocked.
