Brian, AVG for Mac is free (http://www.avg.com/ww-en/all-products#customer=home&platform=mac).
AVG Guru
Hello Brian,
We can understand your concern. Upon checking with your account we can see that you have AVG Internet Security as your active products. Please be informed that your subscription of AVG Internet Security can be installed only on Windows PC. Since you have mentioned that you need to install AVG program on your MAC device, we wish to keep you informed that ,we do not have the paid version for MAC. If you need to install AVG free version please click on the following http://www.avg.com/us-en/for-mac link .Thank you.
I just renewed AVG antivirus for another 2 years but realized I'm not using windows anymore. I now have a Mac. How can I change the download that I just purchased to work on my MAC?