CCleaner Upgrade To Proffessional

I was just using CCleaner earlier and noticed that there was a Black Friday deal of just £14.28 to upgrade to Professional, while I was looking at that I noticed that there was a free trial so I thought I it would be a good way to see if its what I need. I went through all the sign up procedure and felt that something wasn’t right, I was just about to press send to activate the free trial when I noticed that after the trial period I would be liable to pay almost £40 for a subscription to AVG so I immediately cancelled everything, now I am not sure about the company, if your thinking of taking up the offer of a free trial, its isn’t really free, this clearly demonstrates there is no such thing as a free lunch.
Read the T&Cs people !I