Google's also stepping up its game with YouTube Music (Android, iOS), a music streaming and discovery app that builds on the vast community of users that use YouTube. Available on Android and iOS, and formerly known as Music Key, YouTube Music provides users with access to more than 30 million music videos. You can search for artists, videos and albums to automatically generate a non-stop station, with personalized stations learning from your preferences. Offering more then just music videos, the app nets you remixes, covers, full albums and classic recordings. YouTube Red subscribers get ad-free listening, as well as offline music, background listening and an audio-only mode that skips video downloads.