Rekordbox can be confusing because its pricing structure has shifted from one-time purchases to a subscription model, and the feature set varies drastically depending on which "Plan" you are running.
You do not need a paid monthly subscription if you own modern Pioneer DJ hardware. Plugging a compatible device into your computer acts as a physical key. This automatically activates for free.
Approx. $7.99/month Best For: Hobbyists with older controllers that don't unlock software.
Approx. $24.99/month Best For: Club install technicians and heavy cloud users.