https://www.xabber.com/
Xabber - open-source XMPP client for Android and Web
Register XMPP account for free. All the Xabber features, Professionally maintained, Avaliable on multiple platforms, Device Synchronization and more.
open source xmppclientandroid
https://codeberg.org/inputmice/Conversations
iNPUTmice/Conversations: Conversations is an open source XMPP/Jabber client for Android -...
Conversations - Conversations is an open source XMPP/Jabber client for Android
open source xmppinputmice