Price: Only six million of the total 20 million Spotify users actually pay for the service. It's available free on mobile, tablet and computer but comes with adverts. Paying subscribers are charged £10 a month but then can use Spotify anywhere, including offline on mobile devices, and don't have to listen to adverts. Previously Spotify limited the free trail perod and capped listening time, but it's done away with this as competition grows fiercer.