Android app demo source code is hosted in a public github repository. You can download or clone source code to get an idea about library integration . You can also build .APK and install it in you device.
Trying demo app
MQTT chat android demo app is hosted in google play store. You can download it in your device and try app features.
CHATI is a Maghrebian chat application that uses MQTT CHAT android library. You can download it from google play..