The base Hulu + Live TV package allows you to watch on up to two screens at the same time, however, if you upgrade to the Unlimited Screens add-on option for $9.99, you have unlimited screens at home and 3 on the go. While you can download the Hulu app to as many devices as you want and be signed in across those apps, the aforementioned restrictions apply to when devices are actively streaming content. If you exceed the screen limit, you’ll receive an error message indicting that you re watching on too many devices. If fix the error, you can manage your devices, change your password, or log out other computers.