Spotify Mobile Service with a Non-Premium Account
In May 2011, Spotify announced that its mobile app would no longer be limited to people on a Premium account — now, everyone who has a Spotify account can use it on an iPhone, iPod touch, or Android device. You don’t enjoy as many features as you would if you had a Premium account, but there’s still plenty of reason to run the app on your phone:
The ability to wirelessly sync locally stored music from your computer to your phone, which includes music you may have ripped from CDs or downloaded elsewhere. Just create a playlist that features your tracks, and you can almost see them magically transferring over the air.
Along with local files, all playlists are synced from Spotify to your phone (but you can’t play tracks that you don’t own already).
Having the ability to listen to tracks on your mobile device is very convenient, particularly if you use Spotify on your computer as a musical hub in conjunction with streaming tracks from Spotify’s database. That way, you don’t have to use iTunes or some other third-party app to sync local tracks to your phone.
Unlike the computer application, Spotify Mobile doesn’t stream by using peer-to-peer. Songs are pulled directly from Spotify’s own servers and stored in a cache.