@a_breakin_glass @King XMPP+OMEMO!
Gajim is almost Tor-friendly now, and Chatsecure is slowly catching up with Conversations w.r.t. OMEMO features.
https://dev.gajim.org/gajim/gajim-plugins/tree/master/omemo
https://dev.gajim.org/gajim/gajim/issues/8538
https://chatsecure.org/blog/chatsecure-v43-omemo-group-chat-preview/