Jack Dorsey's offline messaging app that works without internet is now on App Store
Bitchat, a new decentralized messaging application created by Jack Dorsey, is now officially available to the public in the Apple App Store.
The application allows iPhone users to securely send encrypted messages without the use of the internet or a centralized server. The application was launched by the Twitter founder in beta mode on July 7.
Bitchat creates mesh networks using Bluetooth Low Energy (BLE) between nearby devices. Bitchat utilizes the Noise protocol for its end‑to‑end encryption and does not have to use phone numbers, usernames, or store messages in the cloud.
Messages are sent directly between devices within a 3.2 km radius, and messages are deleted after delivery, unless held by the app's store-and-forward function. Group chats can also be protected by a password.
Online users praised Dorsey for bringing the 'Bitcoin ethos' to life beyond the financial aspect.The app's interface shows a text-based, terminal-like view and does not have user metadata. It is designed for instances in which regular networks are unavailable and/or being monitored, such as in remote areas or locations with disrupted internet access.
Bitchat's use case extends beyond texting and avoiding surveillance, as stated by Dorsey, who notes that there are many other use cases for the app. In the case of a disaster where cellular towers fail — such as Hurricane Katrina in 2005 — Bluetooth-based mesh can help communities and emergency responders continue to communicate locally.
Furthermore, Dorsey's app allows users to continue communicating through Bluetooth messaging when there is intermittent or censored connectivity, and then synchronize afterward, even in situations with limited internet access, such as at WiFi hotspots.
The system has allowed movement between `nearby' mesh networks, but extended movement would limit functionality. The cache for messages is generally up to 12 hours on each device.
Jack Dorsey's offline messaging app that works without internet is now on App Store first appeared on TheStreet on Jul 28, 2025
This story was originally reported by TheStreet on Jul 28, 2025, where it first appeared.
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