A free app for Android, by Giant Tree Studio.
If you're looking for an easy way to control your fire TV, then you've come to the right place. In this app, you will be able to use your phone to control it, just like with a normal TV. The best part is that you don't need to have any previous experience with the app. It's very simple and easy to use. Just install the app and you're good to go.
The app has a very user-friendly interface. All you need to do is to tap on the screen to change the channel or to turn the power on or off.
You can also swipe left or right to go to the next channel.