#Coy.im is a fairly new, cross-platform, desktop chat app, for the #Jabber network (#XMPP protocol). It's privacy-focused, for example it uses #TOR and #OTR encryption for all chats by default (not #OMEMO, interesting choice). Also, they're avoiding implementing some features, like highlighted links, they say could add unnecessary complexity and more risk of bugs and thus security flaws. They say they are looking for people willing to do security audits on their code:
@strypey but no OMEMO is a real killer nowadays
The social network of the future: No ads, no corporate surveillance, ethical design, and decentralization! Own your data with Mastodon!