Mezzukron

Thank you for your responses.

I am sorry for this question but I have not been able to find the answer on the Piriform Website and I apologize if I overlooked it. I have used CCleaner for years and have contributed money to the company a couple of times in the past but have always used the free version. Is the professional version a one time payment or does one need to pay again for use of the updated software on an annual basis?