Programs: messenger clients

From wikinotes

Messaging Services/Protocols

irc chatrooms
slack proprietary chatroom service
discord proprietary chatroom service
reddit bulletin board service
lemmy federated bulletin board service
ssh-chat chat over ssh
xmpp Self hosted chatrooms
briar Secure P2P messaging (linux, android)

Mobile Clients

ios

bluebubbles imessage client
airmessage imessage client with web interface