Are you an aspiring DJ who wants to mix on the road? Or are you a professional mixer who needs to test out your set in between shows? Whatever the case may be, Traktor is offering a free download for their iOS app to celebrate the app store’s 5 year anniversary. The production company, Native Instruments, is responsible for the smallest professional mixer that packs the heaviest punch. Hop on this deal while it lasts, the original price for the iPhone app is $5, while the original price for the iPad app is $20.