zyptonite.com has some great features. Group messaging, group voice calls and group video calls are hard to come by in the "paranoid encrypt everything" world t

zyptonite.com has some great features. Group messaging, group voice calls and group video calls are hard to come by in the "paranoid encrypt everything" world that we seem to find ourselves. That being said, one of their most recent updates hosed my account so badly that I just switched to Signal. I've also used Wire and I really liked it, but I had the same problem. The update to the new technology broke it in such a way that I can't actually message anyone anymore. If Wire can get their ducks in a row, I might switch back.