Download of X Djing 2.1.8 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. The actual developer of this free Mac application is Music Topia. The software belongs to Audio & Video Tools.
From the developer:
X DJing is a DJ software application that lets you mix music, play with audio effects, set loops and hot cues. Therefore, the tool provides you with 8 powerful audio effects, automatic beatmatching and synching, 4 hot cue points, a 3-band equalizer, and parallel waveforms.
You may want to check out more software for Mac, such as DJing With Traktor Pro, CROSS-DJ or Radiologik DJ, which might be related to X Djing.