#XMPP (aka #Jabber) is an easy, widely used free federated chat system.
There are thousands of instances to sign up at, such as https://chinwag.im and
https://www.xmpp.jp
There are also *lots* of apps.
Maybe the most important thing is that an app supports OMEMO privacy:
Some recommended OMEMO-compatible apps:
Conversations (Android)
https://conversations.im
Gajim (Win/Linux)
https://gajim.org
Monal (iOS/Mac)
https://monal.im
#XMPP (aka #Jabber) is an easy, widely used free federated chat system.
There are thousands of instances to sign up at, such as https://chinwag.im and
https://www.xmpp.jp
There are also *lots* of apps.
Maybe the most important thing is that an app supports OMEMO privacy:
Some recommended OMEMO-compatible apps:
Conversations (Android)
https://conversations.im
Gajim (Win/Linux)
https://gajim.org
Monal (iOS/Mac)
https://monal.im
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