Exfm is designed to provide you with a way to find new music you might like. It takes a sort of crowd-sourcing approach to music finding, relying on lots of recommendations from music bloggers and other users to highlight new stuff that's worth listening to.
When you tap on suggestions they immediately start playing and if you like a track you can tap the heart icon to add it to you list of favourites, which then is used to inform other people's music selections. You can also buy tracks directly from within the app, just by tapping and holding on them. The app can even act as your standard music player and allows scrobbling of tracks to your Last.fm account.
Exfm provides an easy way to find new music, and its social approach to recommendations is refreshing.