Jack Dorsey’s Bluetooth messaging app Bitchat now on App Store

Jack Dorsey developed Bitchat, a Bluetooth-based messaging app, coding its foundation over a weekend in early July. The app enables users to send messages within approximately 100 meters via Bluetooth mesh networks, functioning without cellular or Wi-Fi connectivity. Bitchat features a minimalistic user experience with no login system; users immediately access a messaging interface where they can view nearby users' messages and set or change their display names. While the concept of Bluetooth messaging apps is not new—having practical use in environments like music festivals or disaster zones—Bitchat has drawn attention due to Dorsey’s involvement. Despite being promoted as a secure and private platform, security experts have raised concerns about Bitchat’s vulnerability to impersonation attacks. Researcher Alex Radocea highlighted fundamental flaws in the app’s cryptographic protocol that could compromise its security. Dorsey acknowledged these issues, admitting the software may contain vulnerabilities. Additionally, while Bitchat is officially available on the iOS App Store