You don’t buy the software, you rent it. After 1 year you have to pay for another year or the software will not work. All you get is constant renew or discontinue. If you chose to discontinue. It keeps asking you until you remove the software.

This is on the pop-up that keeps haunting you:
“Should you wish to maintain the protection of your computing privacy, you may renew your license for ParetoLogic Privacy Controls quickly by choosing the “Renew” button below. If you wish to discontinue this protection, simply choose the “Discontinue” button and accept our appreciation for your patronage.”