Xabber - XMPP client for Android

Xabber is the most popular open-source XMPP client for Android. It supports multiple XEPs, Off-The-Record (OTR) chat encryption and is available in multiple languages. Xabber is standards compliant and secure, supporting a vast number of XMPP extensions and services. It is compatible with all standard XMPP servers. Ejabberd, Prosody, Operfire, etc.