You should first access the settings on the console and follow the directions once you have navigated to 'Remote Play Connection Settings'. Getting the application up, running and linked to your console is not a complicated task.
You have the option of using a touchscreen, keyboard or a connected joystick or controller, too. With this application, you can link controllers to your device and play the games that are you have installed on your PlayStation 4 console. PS4 Remote Play is a free application which effectively allows you to play and stream your PlayStation 4 games remotely on an iPhone, Android phone, tablet or iPad and in the case of PS Remote Play for PC, on a Windows computer.