Primary software price is $39 for digital download
After you install and purchase the software a license key will be sent to you in email
You can activate the software using your license key and turn into a full version.

Software price on DVD is $44
After you receive the software DVD in mail you need to activate the software using your license key printed on back of DVD case
The DVD contains a full set of wheel systems databases while in downloaded version only basic wheels are included

Trial version of the software has some restrictions built-in, but if you want to have fully working software for reduced price you can buy fully functional version for a limited time.
Prices vary on the period time and starting from $8 for one month.