The user is specifically requesting the "Pro Infinity" tier, which is a paid product, while asking for it "free." This indicates a search for a "cracked" version of the software.
If you are just practicing at home with a mouse and keyboard, the software is completely free . virtual dj pro infinity 8.4 download free full version
—moved the software toward a more modern, streamlined interface. New Interface: The user is specifically requesting the "Pro Infinity"
If you ignore the warning and search for cracked or pirated copies, you’re entering a minefield. Common risks include: which is a paid product
That being said, I can offer some alternatives: