Apple Music and Spotify are the biggest players in the music streaming space -- and for good reason. Spotify essentially created the market as it exists today and has millions more users globally than any other service, but Apple Music is catching up, thanks to its deep integration in Apple's popular iOS ecosystem.
Both Spotify and Apple Music offer as much music and related content as your ears could handle – including exclusive new releases from top artists – and all of it can be streamed ad-free (with Spotify's paid tier) or downloaded for offline play.