"Apple Music is the top music streaming service on our Index, with nearly 41 million monthly unique users reported in February (on mobile devices only). Even without taking PC audiences into account, it’s still the reigning music streaming service, with 20% more monthly unique users than Pandora (32.6 million monthly unique users) or Spotify (30.4 million monthly unique users)." http://www.vertoanalytics.com/verto-index-streaming-music/ Obviously, this has a lot to do with the three month trial, since they probably have around 20 million paying users. Still interesting given the fact that they did not include AM via iTunes, probably the most used music app on earth, in the calculations. It should be interesting to see what type of success Pandora has with its paid streaming venture since they already have so many "radio" users.