Jack Dorsey Unveils Bitchat: Offline Encrypted Bluetooth Messaging App

Jack Dorsey launched Bitchat in July 2025, a Bluetooth mesh app enabling end-to-end encrypted messaging without internet, ideal for remote or outage scenarios. Despite rapid adoption and open-source appeal, it lacks security audits, sparking concerns. This decentralized tool could revolutionize offline communication if scalability issues are resolved.
Jack Dorsey Unveils Bitchat: Offline Encrypted Bluetooth Messaging App
Written by John Smart

In the rapidly evolving world of digital communication, Jack Dorsey, the co-founder of Twitter and CEO of Block, has unveiled Bitchat, a messaging app that challenges conventional connectivity by relying solely on Bluetooth mesh networks. Launched in early July 2025, the app promises end-to-end encrypted conversations without needing internet access, positioning it as a potential game-changer for users in remote areas or during network outages. Dorsey, known for his advocacy of decentralized technologies, described the project in a series of posts on X as a weekend experiment that quickly gained traction, with an Android version following swiftly after its initial debut.

Bitchat operates on a peer-to-peer basis, allowing devices within Bluetooth range—typically up to 100 meters—to form ad hoc networks that relay messages across multiple hops. This mesh structure means that even if two users aren’t directly in range, their messages can bounce through intermediary devices, extending reach in crowded or structured environments like festivals or office buildings. Early reviews, such as one from The Indian Express, highlight its utility in offline scenarios, where testers successfully exchanged messages without Wi-Fi or cellular data, praising the app’s simplicity and encryption features.

The Security Promises and Early Controversies

However, Bitchat’s launch hasn’t been without scrutiny. Dorsey admitted in a post-launch statement that the app hadn’t undergone formal security audits before release, a point detailed in a report by TechCrunch, raising eyebrows among cybersecurity experts who argue that untested encryption could expose users to vulnerabilities. Despite this, the app’s open-source nature—shared via an “ugly whitepaper” Dorsey linked on X—invites community scrutiny and contributions, potentially accelerating improvements.

Industry insiders note that Bitchat aligns with Dorsey’s broader vision for decentralized systems, echoing his work on projects like Bluesky and Bitkey. As reported by CNBC, it’s positioned as a rival to apps like WhatsApp, but with a focus on privacy and offline functionality rather than global scale. Recent updates indicate rapid adoption, with the iOS version climbing to the top 200 free apps in Apple’s App Store Business category, according to Benzinga.

Technical Innovations and User Adoption Challenges

Delving deeper, Bitchat’s protocol leverages Bluetooth Low Energy for efficient power usage, enabling background operation that notifies users of nearby “Bitchatters,” as Dorsey mentioned in X interactions. A notable innovation is its solar-powered relay concept, showcased in one of his posts, which could extend networks in off-grid settings. Yet, as CNET warns, the app’s current user base is limited, meaning downloads might not yield immediate chatting opportunities without a critical mass of adopters.

For tech professionals, the app’s lack of dependencies on cloud servers represents a bold shift toward truly distributed communication. Mashable emphasizes its end-to-end encryption, built on decentralized principles, but questions scalability in urban environments where Bluetooth interference could disrupt meshes. Dorsey’s team has already addressed some compatibility issues, with a new Android version under review to fix bugs, as he noted on X.

Future Implications for the Industry

Looking ahead, Bitchat could influence emergency response tools or IoT integrations, where internet reliability is a concern. Publications like NDTV have lauded its potential in developing regions with spotty connectivity. However, experts caution that without rigorous testing, it risks becoming a niche experiment rather than a mainstream tool.

As of July 30, 2025, Bitchat’s momentum continues, with iOS availability expanding via Absolute Geeks reports. Dorsey’s X posts suggest ongoing enhancements, including features like solar relays, hinting at a protocol that might evolve beyond messaging into broader decentralized networks. For industry watchers, Bitchat exemplifies the tension between rapid innovation and security imperatives in tech’s push for autonomy.

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