Encrypted Communication

Email Services

Proton Mail - Encrypted email, VPN, calendar, and data storage based in Switzerland

Tutanota Mail - Encrypted email and calendar based in Germany

Messaging Apps

Wire Messenger - Encrypted messaging, video collaboration, and conferencing

Session - Encrypted messenger that does not collect metadata

SimpleX Chat - Encrypted Messenger without user IDs

Video Conferencing

Brave Talk - Encrypted video conferencing in the Brave Browser

Jitsi Meet - Encrypted video conferencing in browser or through the app

Other

CryptPad - An end-to-end encrypted and open-source collaborative office suite