Spotify says its iPhone app has been approved by Apple and will be available for its premium subscribers.

The app will be available "soon" from the App Store for customers in the U.K., Sweden, France, Spain, Norway and Finland.

The Spotify app will be free but will only work for premium users, who pay £9.99 ($16.30) in the U.K. for a higher quality, ad-free version of the free ad-funded streaming service.

The app will work in areas where there is no network coverage, because of an offline mode that allows users to temporarily cache playlists to their phone for use when there is no connection.

"Spotify on the iPhone will include many of the features our users enjoy on the desktop, with the added advantage of letting you listen to your playlists even when you haven't a network connection, for instance when on a plane or the underground," said a Spotify statement.