Android TV Remote Control - Android TV Remote Control is free to use application that allows you to take control of your Android TV.
AirDroid - Access Android phone/tablet from computer remotely and securely. Manage SMS, files, photos and videos, WhatsApp, Line, WeChat and more on computer.
KKMultiScr - KKMultiScr is an interactive application designed for multiscreen that allows to control your android application with ease, so make your life easy with the proper channel handling.
Pushbullet - Pushbullet - Your devices working better together
Mi Remote controller - Mi Remote controller is a reliable free to use application that allows you to control any electric appliances with your phone.
Unified Remote - Unified Remote is a software app available for iPhone, Android, and Windows Phone mobile operating systems. It's designed to turn your smartphone into a universal remote. Read more about Unified Remote.