The 3-Dim doesn't have a price. Although the software is available on the developer's website, they only list some information about it and a link to contact them to ask additional questions. I didn't see a cart or a section for members, therefore the only way to find out the price is through their link.
Access the official website then locate the link under the description of the software. This is the only way to obtain the price since it's not even mentioned anywhere.