mesh networks Archives

AppWizard

July 30, 2025

Jack Dorsey’s Bluetooth Messaging App Bitchat Hits App Store Top 200

Jack Dorsey announced that his decentralized messaging app, Bitchat, has reached position 186 in the Business category of Apple’s App Store. Bitchat operates over Bluetooth Low Energy (BLE) mesh networks, allowing communication without central servers, user accounts, or phone numbers. The app focuses on ephemeral messaging and stores data only in device memory. Block Inc. is included in the S&P 500 and holds 8,584 Bitcoin valued at over a billion dollars.

AppWizard

July 11, 2025

Jack Dorsey launches Bitchat, a secure messaging app that doesn’t use the internet

Jack Dorsey, co-founder of Twitter, Bluesky, and Square, has introduced a private messaging application called Bitchat, which operates independently of traditional internet or cellular networks. Bitchat utilizes decentralized Bluetooth technology and end-to-end encryption for secure communication. It is based on Bluetooth Low Energy (BLE) mesh networks, extending the typical Bluetooth range from 100 meters to 300 meters. Developed with the help of an AI coding companion named Goose, Bitchat is described as a "weekend project." The app aims to provide resilient and private communication, but critics have raised security concerns about its authentication system. Dorsey has issued a disclaimer stating that Bitchat is a "work in progress" and has not undergone external security review, warning users against relying on its security until it is evaluated.

AppWizard

July 9, 2025

Twitter Co-Founder Jack Dorsey’s Bitchat Aims to Kickstart the Offline Messaging Revolution

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.

AppWizard

July 9, 2025

Twitter co-founder launches Bluetooth-only messaging app

Jack Dorsey, co-founder of Twitter, has launched Bitchat, a peer-to-peer messaging app that operates over Bluetooth without the need for internet or phone numbers. Currently in beta testing via Apple's TestFlight, Bitchat uses local Bluetooth mesh networks to relay messages, ensuring encrypted conversations that disappear by default. Users can create password-protected group chats and future updates may include Wi-Fi Direct support. The app is designed for use in situations with compromised internet access and does not collect user data or require accounts. A whitepaper on GitHub outlines its technical framework aimed at resisting censorship. While still in early testing, the app's effectiveness at scale is yet to be evaluated, and there are no announcements for an Android version or public launch plans.

AppWizard

July 9, 2025

Twitter’s former CEO launches Bluetooth-based messaging app

Jack Dorsey has introduced Bitchat, a messaging application that operates over Bluetooth mesh networks, eliminating the need for the internet, servers, SIM cards, phone numbers, or email addresses. Bitchat is currently in beta on TestFlight and facilitates encrypted, peer-to-peer communication between nearby devices. Features include one-on-one encrypted chats, optional group messaging with password protection, searchable messages using hashtags, and store and forward functionality for delayed message delivery. Future versions will incorporate WiFi Direct technology to enhance communication speed and range.

AppWizard

July 8, 2025

No Internet, No Problem: Jack Dorsey Unveils Bluetooth Messaging App ‘Bitchat’

Jack Dorsey, co-founder of Twitter and CEO of Block, has launched a messaging app called Bitchat, which enables communication without internet connectivity using Bluetooth mesh networking. Bitchat operates on a peer-to-peer basis, does not require user accounts, and ensures messages are encrypted and temporary, without interaction with a central server. Users can communicate within a 300-meter radius, and messages can be relayed to others beyond direct Bluetooth range. The app features password-protected group chats, delayed message delivery for offline users, and will support Wi-Fi Direct for improved range and speed. All messages are stored solely on users' devices and are designed to disappear over time. Bitchat is described as a decentralized, peer-to-peer messaging application resilient to network outages and censorship. The beta release quickly filled all 10,000 slots, indicating significant interest.

AppWizard

July 8, 2025

Jack Dorsey made an encrypted Bluetooth messaging app

Jack Dorsey, co-founder of Twitter and Block, has launched a peer-to-peer messaging application called Bitchat, which uses Bluetooth technology to enable communication without Wi-Fi or cellular service. The app operates on Bluetooth Low Energy mesh networks, allowing encrypted messages to be sent directly to nearby devices and enabling automatic message relay to extend the effective range beyond direct Bluetooth connections. Bitchat prioritizes user privacy, requiring no accounts or data collection, and features like a password-protected channel and a “Panic Mode” for instant data deletion. It has a messaging range exceeding 300 meters and is currently in beta testing via Apple TestFlight, which has reached its capacity of 10,000 users.

AppWizard

July 8, 2025

Jack Dorsey quietly dropped a game-changing chat app and it’s already full: All about it

Tech entrepreneur Jack Dorsey has launched a decentralized messaging application called Bitchat, designed to function independently of the internet and without the need for personal information. The app facilitates peer-to-peer messaging through Bluetooth Low Energy (BLE) mesh networks, allowing communication over distances greater than 300 meters without cellular or Wi-Fi connectivity. It is currently in beta testing via Apple’s TestFlight. A whitepaper on GitHub details its functionality, with each phone acting as both sender and receiver for multi-hop message transfers. Bitchat prioritizes user privacy by not requiring a phone number or email address. Messages are temporarily stored on devices, with an automatic caching system to ensure delivery when the recipient reconnects to the network. The app features a tiered message retention system, where standard messages are deleted after 12 hours and “favourites” are kept indefinitely. It uses end-to-end encryption with Curve25519 and AES-GCM for data protection. The app includes user mentions, topic-based rooms, and password protection for secure communications, positioning itself as an alternative to traditional centralized messaging platforms.

AppWizard

July 8, 2025

Twitter co-founder Jack Dorsey launches a messaging app ‘Bitchat’ that works without internet

Jack Dorsey is developing a messaging application called Bitchat that uses Bluetooth Low Energy (BLE) mesh technology for peer-to-peer communication. The app allows users to send messages over distances greater than 300 meters without the need for mobile data or Wi-Fi. Currently in beta on Apple’s TestFlight, Bitchat emphasizes secure and decentralized communication, sending short-lived, encrypted messages that relay between nearby devices without a central server. It does not require a phone number, email address, or user account, making it resilient against censorship and network outages. Bitchat aligns with Dorsey’s support for decentralized platforms and is inspired by Bluetooth tools used during the 2019 Hong Kong demonstrations.

AppWizard

July 8, 2025

Jack Dorsey’s New Private Messenger App Doesn’t Need an Internet Connection

Jack Dorsey has launched a beta project called Bitchat, a private messaging app that uses mesh networks and Bluetooth technology to facilitate communication without internet connectivity. Bitchat allows direct peer-to-peer messaging within physical proximity and features automatic message relay to extend its range. The app prioritizes user privacy by not requiring phone numbers or permanent identifiers and ensures end-to-end encryption. Dorsey emphasizes the app's independence from traditional internet infrastructure, making it resilient to outages and censorship. The project is still in its early stages, and its technical robustness remains to be evaluated.