Music website Indie Shuffle now has an official iPhone app, promising that “music discovery just got a whole lot easier”.

How? The app taps into SoundCloud to create what it terms ‘smart playlists’ in various genres, prompting users to tap on a particular song to generate a playlist of similar stuff. Songs can be marked as favourites, compiled into playlists and shared to Facebook and Twitter.

The app is free and promises “absolutely no audio ads” – presumably non-audio ads will provide the business model, if there is one.

There is plenty of competition from existing music discovery apps on iPhone – most recently the impressive Shuffler.fm app – but Indie Shuffle looks like a contender.