One of the most professional DJ apps on iOS, DJ Player, is free now through December 4th! Thanks to Simon for the heads-up!

iTunes Description: DJ Player is the PREMIUM DJing solution for iOS devices, with 2 decks, 2 effect engines and a mixer. Designed, developed and tested by professional DJs, every detail is carefully tuned and continuously improved to provide the best DJ application for You. High stability, performance and audio quality. Lowest latency.

Flexible audio routing with different output modes, plus ultra-low latency WiFi streaming.

Designed for the DJ booth, not just your hand.

Advanced cueing, looping and slip mode.

Full MIDI controller support with mapping.

This is pretty incredible for DJ Player to be free, when most folks agree it is worth the $45 asking price. It is even Universal!

I have featured it a couple of times in the past, including a tutorial and this demo with the Stanton SC3 sending it MIDI.