Well, for Android at least, the one I mentioned, Conversations ? BTW, I use it with my mom. And even though I was the one that set up her XMPP account at https

Well, for Android at least, the one I mentioned, Conversations ? BTW, I use it with my mom. And even though I was the one that set up her XMPP account at https://jabber.lqdn.fr/my/create.php https://jabber.lqdn.fr/my/create.php , as you can see it's quite straightforward to do ! (And other servers might have an even easier, more mobile friendly version by now, IIRC Conversations itself is suggesting one ?) As for Matrix, see this other comment of mine : https://news.ycombinator.com/item?id=25683697 https://news.ycombinator.com/item?id=25683697