Shazam is an ok apps. But its more of an advertising apps than a useful one. If it could recognize a song, download it from the internet for free and install into your music list, then it would be the all-time best apps ever!!
my favorite is the bump app. bump, get their info. bump, get their music. bump, get their pic.
the fact that it Saves you 5 bucks from a audio stream on your computer is great and you can watch any MLB game with a MLB.Tv Subscription or for 99 cents is a great deal and a must if your a baseball fan
It is football season. I love the app I just made called SideBets. May be the most expensive thing I have ever built just so I can bet with me friends.