I installed the Free to Try version. Then, I decided to pay for the Basic one. After payment, I did not know what to do to upgrade my current installation. I thought I would need to enter the Order ID somewhere in the Options of Easy Profile. Apparently, there is a different installation package (zip) file for each version.
I suggest explaining this in the confirmation email message, which is sent after subscription, something like the following.
If you have the Free to Try version installed, please visit the installation page, and download the Basic package.