What is Bitchat? A messaging app that works without internet

Twitter co-founder Jack Dorsey has introduced a new messaging platform, Bitchat, designed to function entirely without the internet. Built for iPhone users, Bitchat uses Bluetooth Low Energy (BLE) mesh networks to enable private, peer-to-peer communication—even in areas with no cellular or Wi-Fi connectivity.

Currently available in beta through Apple’s TestFlight platform, Bitchat quickly reached the 10,000-user testing limit. The app stands out for its emphasis on decentralization, privacy, and censorship resistance. Unlike mainstream messaging services like WhatsApp or Telegram, Bitchat requires no email address, phone number, or internet access.

How Bitchat works

Bitchat leverages Bluetooth mesh networking, allowing nearby devices—within about 30 meters—to form temporary clusters. Messages are passed securely from device to device, enabling them to travel far beyond the usual Bluetooth range as people move.

Key features include:

Offline messaging: No need for Wi-Fi, mobile data, or a central server.

End-to-end encryption: All messages are encrypted and stored only on the sender’s and recipient’s devices.

Ephemeral chats: Messages self-delete after a brief period, reducing the risk of data retention.

This system makes Bitchat particularly useful in environments with restricted internet access, during natural disasters, or in high-surveillance areas where privacy is critical.

Dorsey has also published a whitepaper outlining the technical architecture and vision behind Bitchat, aiming to offer a more secure and decentralised communication alternative in an increasingly connected world.

Though still in beta, Bitchat's quick popularity on TestFlight signals a growing demand for privacy-first, internet-independent communication tools.