I've been using the free version of CCleaner for many years and have enjoyed it. I finally decided I wanted to support Piriform and purchase the Professional version, but then when I saw the cost and that it was only a yearly subscription I decided against it. I don't ever recall seeing anything related to subscriptions in the past so I decided to do some digging. Now that I've seen his thread though, I'm glad I took a pass. I went all the way to the actual billing page before I even noticed that it was only a subscription.