Element.io - Secure messaging app with strong end-to-end encryption, advanced group chat privacy settings, secure video calls for teams, encrypted communication using Matrix open network. Riot.im is now Element.
Linktree - Connect your audience to all of your content with just one link.
ChatSecure - ChatSecure is a free and open source messaging app that features OTR encryption over XMPP.
Manylink - One link, multiple URLs ⛓️
Keybase Chat - End-to-end encrypted chat built into Keybase
about.me - About.me lets you quickly build simple and visually elegant splash pages that points visitors to your content from around the web. Get started today.