You cannot compile a list of the best apps for movies and TV without mentioning Netflix. The service is a social and cultural phenomenon, and the Netflix app is really rather decent. The selection is enormous and the streaming quality is excellent. The biggest advantage of it has over its rivals, however, is the ever-increasing selection of exclusive content and Netflix Originals movies and TV shows. You'll need a paid account to watch though, of course.
If you are seeking an alternative app store because you find the Play Store overwhelming and difficult to search, then we have another solution to suggest. You could try an app that’s designed to improve the app discovery process and aid you in finding the content you want, but that still ultimately plugs into the Play Store to download and install apps and games. Droid App