If you need an application that you can download and install on your Android device to turn it into a substitute remote for your Smart TV, then this LG webOS Magic Remote app is the one that you need.

With this tool, you can turn your mobile phone or tablet into a remote control for your television. All you have to do is download and install the app on your phone, and you are good to go.

To use it, you need to point your phone toward the television. This way, the phone acts as a cursor, so the cursor on the TV screen also moves when you move your device.