Plex is something that I use all the time. I use it on my iPhones and iPads. You can sync content without having to plug into a computer. You can also run it (sort of) on an AppleTV. It works amazing once setup. No longer do you need to keep iTunes open to stream content on the AppleTV. Plex is trying to move the platform forward and that comes with a cost. Plex is set to increase prices in the next week. Sign up now before the increase goes into effect.