YouTube Messenger - YouTube in-app video sharing and messaging
CineTrak - Discover, manage, and track the best Movies and TV shows
Kiwi Music Player - Listen to any track on youtube on this Mac App
MoviePanda - Discover and watch 15,000+ movies online for free
YouTube Vanced - Vanced is a modded version of YouTube with many features such as adblocking and background playback
Videostream - The easiest way to stream video from your computer to Chromecast or AndroidTV.