Crypho - End-to-end-encrypted messaging and file sharing
GrapheneOS - GrapheneOS is an open source privacy and security focused mobile OS with Android app compatibility.
Wire by EY - A highly secured collaboration platform
Earlynote - A time-travelling messaging app
aliceandbob.io - A free, light and easy to use client-side PGP tool 🔐
Hie Chat - Know what your friends are doing and chat without typing