Jack Dorsey has launched BitChat, a Bluetooth-based messaging application now available on the Apple App Store, enabling offline communication without cellular or Wi-Fi connectivity. The app allows users to connect with nearby individuals by simply launching it, setting a display name, and messaging anyone within Bluetooth range (up to 100 meters). BitChat facilitates encrypted communication through local Bluetooth clusters, with messages relayed between devices and stored only on individual devices, ensuring privacy. It includes features such as optional group chats secured with passwords and a "store and forward" capability for offline users. Future updates may introduce Wi-Fi Direct to improve speed and range. BitChat operates on a peer-to-peer basis without accounts or data collection, distinguishing it from mainstream messaging platforms.