iO.e is a free Android app developed by HANGZHOU HEMOS LIGHTING COMPANY LIMITED, designed for smart lighting control. The app allows users to turn on and off the lights, adjust brightness levels with linear dimming functions, change CCT between 2700k, 4000k, and 6500k, change colors automatically or by selection, and group lighting devices room-by-room. Additionally, the app features auto-dimming when enjoying music.

The user interface is easy to navigate and provides a seamless experience for controlling smart lighting devices. The app is a great addition for those who want to control their lighting devices from their Android phone. Overall, iO.e is a useful app for anyone who wants to have more control over their lighting devices.