Amazon Prime Video is an internet video-on-demand service where users can watch exclusive Amazon Originals as well as popular movies and TV shows anytime, anywhere. The service contents are either for rent or purchase.
Google Play Movies & TV is an on-demand video service operated by Google. It allows you to rent or purchase movies and series directly on your device for watching them offline. It has a large library and offers both SD and HD quality.
Vudu is a video-on-demand streaming service available to both Android and iOS devices and Windows and Mac computers. It contains both the latest releases and timeless classics. It's only accessible from the US and signing up is free.