Soulo Karaoke is a sing along app with a library of popular and public domain songs to rock out to. It can be used with the iPhone 3GS and up, and both iPad devices. It’s possible to record using the built in microphone on these devices, but the company (and our testing) deosn’t recommend it. Instead, they also sell the Soulo Mic, a $70 – $100 microphone accessory made to be used with the app.
