Spotify on Monday told The Telegraph that it now has more than 100 million monthly active users worldwide. But of that 100 million, only roughly 30 million or so are paid subscribers—so the ones that dole out ~$10 a month.
For comparison, SVP Eddy Cue announced during last week's WWDC keynote that Apple Music now has 15 million paid subscribers. Now that's just half of Spotify's count, but still very impressive for a service less than 1 year old.