As usual, to use this app you'll need to have an EA (Origin) account along with a copy of FIFA 16 for Xbox One, Xbox 360, Playstation 4, Playstation 3, or PC. It's also important to keep in mind that you can't create a FUT team using the app – that will need to be done in the game itself. From the app interface you'll only be able to manage your team.
EA SPORTS FIFA 16 Companion is a very useful app for users who are really hooked on this FIFA 16 game mode. And there are more than a few of you.
Requires Android 4.1 or higher