Discover Bitchat: Jack Dorsey's Vision for Offline Messaging

In today's hyper-connected world, most messaging apps depend entirely on the internet or cellular networks. But what if we told you there's a messaging platform that works without either? That’s exactly what Twitter co-founder Jack Dorsey is building with Bitchat, a decentralized, encrypted messaging app that works even when you’re offline.

Let’s explore what Bitchat is, how it works!

📝 What is Bitchat?

Bitchat is a peer-to-peer messaging app currently in beta for iOS and macOS. What makes it unique is that it doesn’t rely on the internet, SIM cards, or traditional servers. Instead, it uses Bluetooth Low Energy (BLE) to form a mesh network between nearby devices. Messages hop from one device to another, securely and silently.

Jack Dorsey, known for co-founding Twitter and leading Block Inc., envisions Bitchat as a privacy-first tool that can function in situations where traditional networks are unavailable, such as remote areas, crowded events, natural calamities, or during political unrest.

🧩 How Does It Work?

At the heart of Bitchat is Bluetooth mesh networking. Its various other functions are:

  • Peer Discovery: Devices automatically find others nearby with Bluetooth enabled.

  • Message Relay: Messages are passed along from device to device until they reach the recipient.

  • No Central Server: Unlike WhatsApp or Telegram, there is no server involved. Communication happens directly between phones.

  • Encrypted by Default: Messages are end-to-end encrypted using Curve25519 for key exchange and AES-256-GCM for encryption. This ensures that not even relaying devices can see the content.

  • Ephemeral Storage: Messages are stored temporarily and deleted after a short time, helping preserve user privacy.

This makes Bitchat ideal for offline communication during emergencies, large gatherings, or in countries with heavy internet censorship.

📱 What Do Users Need to Use It?

Using Bitchat is fairly simple, but there are a few technical requirements:

  • Bluetooth must be turned on: It’s the backbone of how messages are sent and received.

  • App must be running: Background activity may be needed depending on your device’s OS permissions.

  • No account needed: There's no sign-up, email, or phone number requirement.

One thing users should be aware of is that their devices may participate in message relaying. While they can’t see the content (thanks to encryption), they do become part of the mesh network. Currently, there is no explicit alert or toggle to opt in or out of this behavior, though future versions may add such controls.

🔐 Is It Safe?

Security-wise, Bitchat has a lot going for it. But it’s important to note that the app is still in beta, and developers have not yet conducted a full third-party security audit. That means while the design is secure, it may still have vulnerabilities.

Still, the combination of encrypted, ephemeral communication and a decentralized design is promising especially when compared to traditional messaging apps that store your data on central servers.

🏫 Real-World Use Cases for Students

Bitchat could be a powerful tool for:

  • College campuses where students want to message across large areas without Wi-Fi.

  • Study groups sharing notes and updates even in poor network zones.

  • Hackathons or tech fests where the internet may be congested.

  • Privacy-conscious communication, such as for activism or whistleblowing.

As technology evolves, understanding apps like Bitchat puts students ahead of the curve in both cybersecurity and peer-to-peer systems.

📅 What's Next for Bitchat?

Though currently available only for iOS via TestFlight (which is already full), future updates may include:

  • Android support

  • Wi-Fi Direct compatibility

  • User controls for relay participation

These additions could make Bitchat even more accessible and practical.

📎 Official References

To ensure everything you read here is based on verified information, we referred to the following trusted sources:

🧾 Disclaimer

This article is based solely on publicly available information from officially recognized sources as of July 2025. Features and specifications may change in future releases.

🚀 Final Thoughts

Bitchat is not just a messaging app; it's a glimpse into the future of resilient, decentralized communication. For students and developers alike, it offers a chance to rethink how messages can be shared securely, privately, and without depending on the internet.

Would you try a messaging app that doesn’t need the internet? Let me know your thoughts in the comments!

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Written by

Divya Vetriveeran
Divya Vetriveeran

I am currently serving as an Assistant Professor at CHRIST (Deemed to be University), Bangalore. With a Ph.D. in Information and Communication Engineering from Anna University and ongoing post-doctoral research at the Singapore Institute of Technology, her expertise lies in Ethical AI, Edge Computing, and innovative teaching methodologies. I have published extensively in reputed international journals and conferences, hold multiple patents, and actively contribute as a reviewer for leading journals, including IEEE and Springer. A UGC-NET qualified educator with a computer science background, I am committed to fostering impactful research and technological innovation for societal good.