A lot or a little?
The parents' guide to what's in this app.
What parents need to know
Parents need to know that Shazam is an amazing -- if not always 100 percent effective -- app that identifies songs picked up by the iPhone's mic. If the app recognizes the song, it displays the name and artist along with a link to the iTunes store. Song names and lyrics can contain iffy language or mature references. Kids can post music information found through the app through a direct connection with Facebook or Twitter.
Is it any good?
Who sings that song? Shazam promises instant satisfaction by identifying any song you point the mic at. Unfortunately, it's not that good. It failed to identify about half the songs played over our laptop's speakers. It did better with loud, high-quality stereo music. But Shazam works only with recorded songs; it doesn't recognize live performances, such as your voice. We recommend applying your five bucks to Midomi Soundhound, which can do all this and more.