Playlist Hunt - Playlist Hunt is one of the best applications for Apple users to get the best music through it.
Vidlis - Create music playlists from YouTube videos.
Book Playlist - Collaborative music playlists for your favorite books
Tuned Rocks📺 - Discover🔎 curated Youtube videos 24/7
Musicon - An interactive music-making machine for children
DiskyT - Youtube playlists done right