Audio recognition app company Shazam added a number of new features to its iOS app, including the ability for users to buy a playlist of songs from iTunes with a tap of the screen.

The Select & Buy function provides a list of the songs users have tagged during the day, from which they can select which to download, before completing the transaction on iTunes.

There is a new recommendation feature that provides suggestions for other tracks users may like after tagging a particular song or discovering it through the Pulse, Explore and Friends features.

The sharing functionality has also been improved to make controls easier to use when sharing tracks on social networks.