#bitchat

Bitchat is a decentralized, peer-to-peer messaging app launched by Jack Dorsey in July 2025. It is designed to work without the internet, cellular service, or accounts. How it Works

Offline Mesh: Uses Bluetooth to send messages directly from phone to phone. Messages "hop" across nearby devices to extend range.

Nostr Integration: Uses the Nostr protocol as a fallback for global messaging when internet is available.

No Identity: No phone numbers or emails required; users are anonymous by default.

Resilience: Built for communication during internet blackouts, protests, or natural disasters.

Japan people and others who live in places prone to natural disasters or blackouts:

Bluetooth mesh communication apps could be vital if the internet and cellular networks go down after an earthquake or typhoon.Mesh communications apps connect phones to phones, so if there's a message you want to send to somebody who's on the other side of town, that message will hop from one phone to another until it reaches its destination. It may take a while for your message to arrive, but if enough phones use the mesh app, it will eventually get there.

There are several mesh communications apps, but the one I've settled on is BitChat because it's available for Android and iOS and was developed by Jack Dorsey, who created Twitter, so he knows about communications.

BitChat messages are end-to-end encrypted.

Το Bitchat, μια σχεδόν άγνωστη εφαρμογή offline επικοινωνίας, προσφέρει λύση για τους διαδηλωτές στο Ιράν, όπου η κυβέρνηση μπλόκαρε το Διαδίκτυο για να εμποδίσει τις κινητοποιήσεις. Δημιουργία του Τζακ Ντόρσεϊ, ιδρυτή του Twitter που αργότερα μετονομάστηκε σε Χ, το Bitchat δεν απαιτεί σύνδεση στο Διαδίκτυο: χρησιμοποιεί την τεχνολογία Bluetooth για να δημιουργεί ένα αποκεντρωμένο δίκτυο, στο…