Twitter Co-Founder Launches Bitchat, Offline Messaging App With Bluetooth Mesh

Written by Caio Aviz

Published on 09/07/2025 at 14:11

Updated on 09/07/2025 at 14:12

Smartphone com o aplicativo BitChat, lançado por Jack Dorsey, permite trocar mensagens sem internet usando rede descentralizada Bluetooth Mesh.

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New App Promises Messages Without Internet Using Decentralized Technology, Focused on Privacy and Extended Reach

Jack Dorsey, known worldwide as the co-founder and former CEO of Twitter, revealed an innovative personal project in July 2025: Bitchat. This messaging app emerges as a communication alternative where the connection is limited. To achieve this, the app relies on a Bluetooth Mesh network. Thus, users can exchange messages without needing Wi-Fi, 4G, or 5G. This information was confirmed by Dorsey himself. He shared details on GitHub and released a beta version for iPhone via TestFlight, the App Store’s testing program.

Secure Data Exchange Without External Dependencies

To understand the technical workings, it is worth highlighting the concept of Bluetooth Mesh. This technology allows for the formation of a decentralized network between devices. In this model, each device acts as both a transmitter and receiver at the same time. Messages take an indirect path, jumping from device to device until they reach their final destination. Despite the usual limitations of Bluetooth, the range is surprising. Typically, the range is limited to 100 meters. Jack Dorsey claimed to have sent messages up to 300 meters. This feat occurred because some devices acted as bridges between clusters, thus increasing the communication radius. According to the creator, there are plans to support Wi-Fi Direct, which will improve speed and range.

Privacy With Automatic Self-Destruction of Messages

In addition to the decentralized network, Bitchat only stores data on the user’s device. As such, there is no central server involved. Another relevant point is the automatic disappearance of messages, which provides more security by default. For group chats, protection is enhanced with passwords. This approach reinforces the app’s commitment to privacy. All of this happens without giving up practicality.

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App Addresses Scenarios Like Protests and Festivals With Congested Networks

The app’s usefulness is confirmed when traditional networks fail. Typically, large events experience congestion in mobile networks, making communication between people impossible. With Bitchat, users can locate friends using just the Bluetooth Mesh network. CNBC recalled Bridgefy, another similar app used during protests in Hong Kong in 2019. Interestingly, this project had the support of Biz Stone, another co-founder of Twitter, reinforcing the potential of decentralized initiatives to help circumvent internet blockades during protests.

Prospects for Expansion and Evolution in the Near Future

Bitchat started as an experimental project over a weekend. Therefore, the growth expectations are high. In July 2025, Dorsey revealed significant advancements. Furthermore, the beta community is already providing valuable feedback for improvements. As a result, the integration with Wi-Fi Direct should extend coverage, consequently offering more stability in connections. Additionally, the decentralized model, combined with local storage, reinforces security, ensuring communication that is resilient to network failures. Bitchat underscores the trend of offline alternatives, which is essential in a context of increasing concern over digital privacy.

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Twitter Co-Founder Launches Bitchat, Offline Messaging App With Bluetooth Mesh

New App Promises Messages Without Internet Using Decentralized Technology, Focused on Privacy and Extended Reach

Secure Data Exchange Without External Dependencies

Privacy With Automatic Self-Destruction of Messages

App Addresses Scenarios Like Protests and Festivals With Congested Networks

Prospects for Expansion and Evolution in the Near Future

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Twitter Co-Founder Launches Bitchat, Offline Messaging App With Bluetooth Mesh

New App Promises Messages Without Internet Using Decentralized Technology, Focused on Privacy and Extended Reach

Secure Data Exchange Without External Dependencies

Privacy With Automatic Self-Destruction of Messages

App Addresses Scenarios Like Protests and Festivals With Congested Networks

Prospects for Expansion and Evolution in the Near Future

A giant printer called the “Ferrari” of concrete has landed in Latin America and can already build a 120-square-meter house in just 48 hours, making the traditional construction site look like something from the last century.

Brazil will harvest a record crop of up to 357 million tons of grains, but it does not have the capacity to store a large part of it. The storage deficit has reached the highest level in history and is equivalent to almost the entire production of Argentina.

Four times faster than the Concorde, capable of taking passengers from New York to London in less than an hour at Mach 5.5, and with an engine that switches from turbojet to ramjet mid-flight at Mach 3.5, the Hermeus Quarterhorse went from paper to its first flight in just 19 months.

She started by collecting oyster shells from restaurants and today she has already accumulated more than 10 tons to restore reefs, recover coastal habitats, and demonstrate how a common waste can become a tool for ocean conservation.

SpaceX will dock a $843 million vehicle to the International Space Station to push a nearly 420-ton laboratory against the atmosphere and make the debris fall in a controlled manner into the ocean.

Scientists considered detonating 213 nuclear bombs in the Sahara to create an artificial sea the size of El Salvador, with each explosion being a hundred times more powerful than the Hiroshima bomb, and the goal was to generate more energy than Egypt’s largest hydroelectric plant.

The explosion in Siberia, recorded on June 30, 1908, over Tunguska, released energy estimated between 10 and 15 megatons of TNT, devastated about 2,150 square kilometers of forest, knocked down approximately 80 million trees, and remains one of the biggest warnings about near-Earth objects.

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