djay Pro provides a complete toolkit for performing DJs. Its unique modern interface is built around a sophisticated integration with iTunes and Spotify, giving you instant access to millions of tracks. Pristine sound quality and a powerful set of features including high-definition waveforms, four decks, audio effects, and hardware integration, give you endless creative flexibility to take your sets to new heights.
djay Pro is available on the Mac App Store:
http://youtu.be/zb_9oWa_0pM