You No Cards - Hide YouTube end cards and channel logo with a single click
Music Pro - Stream YouTube music
Youtube Detox - Distraction-free Youtube search
YouTube Music - YouTube Music is a streaming app primarily designed for Android and iOS mobile devices. The app lets individuals search for music from their favorite artists, enjoy playlists, and access 30 million musical tracks.
YouTube Realtime - The true subscriber count for YouTube, with comparison too.
YT Music - An unofficial Mac app for YouTube Music