An open source messaging app that uses public-key cryptography. Securely send messages to any twitter, reddit, facebook, github, and hacker news user. All messages are end-to-end encrypted. Zoom purch
Video Conferencing, webinars, enterprise phone system, and chat. Allows meeting host to have control over user interaction unless disallowed by user. Up to 1,000 participants and up to 10,000 viewers.