Jack Dorsey is developing Bitchat, a decentralized messaging application created over a weekend. It operates on Bluetooth Low Energy (BLE) mesh networks, allowing devices within a 300-meter range to exchange encrypted messages without the need for internet connectivity or phone numbers. Bitchat forms a dynamic mesh network where messages can hop through nearby devices if a direct connection is unavailable. Messages are end-to-end encrypted, stored only on the sender's and receiver's devices, and disappear after a set time. Users can create group discussions, called "rooms," with hashtags and passwords, and a "Panic Mode" feature enables quick data deletion. Bitchat includes store-and-forward messaging for offline users and has plans for a Wi-Fi Direct update. The app does not collect personal information or track user activity, making it suitable for use in regions with censorship or network issues. Its beta launch on TestFlight quickly reached 10,000 users, and it features a minimalist interface for ease of use. The open-source code is available on GitHub for developer contributions.