This app gives “Breakn A Sweat” a whole different meaning. DJZ.com recently launched their app for the iPhone. Crossfader gives users the chance to dance and mix all at the same damn time. The more you dance the better you sound. It is an effective way to create mashups of classic hip-hop jams with all the latest dance bangers of the day, perfect for parties and indoor workouts. This app is currently FREE, and available through iTunes. Check it out and download here.