rekordbox for Mac/Windows Functions equivalent to the rekordbox Core plan* are available for free via Hardware Unlock. *Some functions can't be controlled from the DDJ-FLX4.
rekordbox for iOS/Android You can download rekordbox for iOS from the App Store, or rekordbox for Android from Google Play.
Serato DJ Lite You can use Serato DJ Lite with the unit for free – no license is needed.
Serato DJ Pro You can use Serato DJ Pro with the unit if you buy a license separately.
djay for iOS/Android You can download djay for iOS from the App Store, or djay for Android from Google Play.
