currently sells Professional X as a yearly subscription (typically starting at $19.99/year). While rare "lifetime" licenses existed many years ago, modern offers for them on third-party sites are often scams. SUPERAntiSpyware Review of Official SUPERAntiSpyware Professional X
However, I need to be clear right away:
While the "Professional" edition has evolved to the "X" edition (as of late 2023), the core technology powering the v4.x versions remains a cornerstone of its reputation. The "Professional" designation indicates that this is the paid, full-featured version, offering real-time protection, scheduled scanning, and automatic updates. Key Features of the Professional Edition currently sells Professional X as a yearly subscription
Are you trying to or just looking for background protection? offering real-time protection