BenQ Smart Control is a free remote controller app designed for Android devices. This app enables you to control your display device with your mobile phone, acting as a remote control, a mouse pad, a remote keyboard, and even a voice searching control. With this app, you can easily navigate through your display device, adjust settings, and control your device's features.

The app is compatible with a variety of BenQ display devices, including the GS50, GV30, HT2650i, HT3550i, QS01, TH685i, TK700STi, TK850i, V7000i, V7050i, W1800i, W2700i, X1300i, GV1, GS2, TK810, and E600 / E800 series. However, it does not support YouTube.

Overall, BenQ Smart Control is a convenient and easy-to-use app that provides you with full control over your BenQ display device using your Android phone.