VirtualDJ frequently releases new features (like real-time stem separation). Cracked versions cannot be updated and quickly become obsolete.
VirtualDJ is unique because the as long as you aren't using professional DJ hardware.
You can download the latest version directly from the Official VirtualDJ Download Page for both Windows and macOS. It includes most professional features but is limited to keyboard/mouse control.
If the Pro version is out of your budget, consider these reputable free or lower-cost alternatives:
Unofficial patches often cause the software to crash during a performance, which is a DJ's worst nightmare. Safe Free Alternatives