
Signal
TextSecure and RedPhone have been merged to create Signal! Using Signal, you can communicate instantly while avoiding SMS fees, create groups so that you can chat in real time with all your friends at once, and share media or...
An open-source decentralized and encrypted messaging app even without internet connection via Wi-Fi and Bluetooth. Messages are stored securely on your device, not in the cloud.
briar is a messaging app designed for activists, journalists, and anyone else who needs a safe, easy and robust way to communicate. unlike traditional messaging tools such as email, twitter or telegram, briar doesn't rely on a central server messages are synchronized directly between the users' devices. if the internet's down, briar can sync via bluetooth or wifi, keeping the information flowing in a crisis. if the internet's up, briar can sync via the tor network, protecting users and their relationships from surveillance.
Official Website
Source
Twitter
Works Offline Group chat Encrypted chat Decentralized End to end encryption No Internet required Bluetooth Support Sync via TOR network
Productivity Social Networking and Admin
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