VUDU is a subscription-free platform that allows you to purchase or rent your favorite movies. Also, you can stream your favorite movies free with ads. You also have the option to download your favorites to watch them offline. Moreover, unlike other streaming services like Hulu and Netflix, you only have to pay for what you want to watch on Vudu.com/start . Even you can get the services of VUDU on Roku as it is available on the Channel Store.