Briar is a secure file sharing application and software designed to help users securely exchange messages and files. It is an open source platform, which means the source code is publicly available for anyone to review. The application uses end-to-end encryption and is designed to work even when the user is offline. It also utilizes Tor for anonymous connections, and it supports multiple authentication methods. Briar allows users to easily and securely send files of any size, as well as share them with friends or contacts. It is an ideal tool for any individual or organization looking for secure file sharing.
Both have similar ideas of communicating within a group without WiFi, or cellular service by exchanging data from one phone to another. Off-network chat