[mickael]

XMPP strong selling point is federation. You can run your own private server and it does encryption. There is plenty of implementations from servers to clients, most being open source. It seems to me just one of the Zillion messaging alternative available.

[reustle]

Why hasn't there been a beautiful XMPP apps created? A company could come in and provide effortless XMPP server setup for a monthly price, and provide great apps for all to use, no?

[edhelas]

There is. You can have a look at Conversations for Android https://play.google.com/store/apps/details?id=eu.siacs.conve... and I'm also working on Movim https://movim.eu/ ;)