What makes the computer version significantly different from the phone version is the fact that you don’t ever need to shut it off. If you're comfortable with Shazam having complete access to the ambient sound around your computer, it'll constantly identify the playing song and deliver that information in a playlist with a direct link to the iTunes music store. So if you are humming some melody and realize when you heard it, you can go back to the list and track that song down.
Ethan Wolff-Mann is an editor at Supercompressor. He prefers to 'Kazaam,' like Shaq. Follow him on Twitter @ewolffmann.