A free app for Android, by Routix software.

MQTT Dash is a free and easy-to-use app that allows you to create and manage dashboards for your MQTT-enabled IoT Smart Home devices. With this handy app, you can share metrics among devices and create a simple and easy-to-use dashboard that allows you to quickly and easily view all the information that you need. 

MQTT Dash is designed to be memory-efficient, so you can connect all your smart devices together without having to worry about running out of memory. The app is currently available for download on the Google Play Store.