BURN.link - Send secure, encrypted, self-destructing messages
Keybase Chat - End-to-end encrypted chat built into Keybase
Blur - Blur is a software application available for both Google Chrome and your smartphone. It's developed by Abine, an online privacy company trusted by more than twenty million people. Read more about Blur.
Spike - Spike solves businesses' communication chaos by bringing together email, team chat, collaborative docs, and meetings, into one feed.
DataMask.tech - Mask private data before taking screenshots
Seald - Keep your conversations secure, everywhere.