You can download a demo version of Shallow Foundation Design Software (SFDS V1.0) straight from their official website. But before downloading, a form needs to be filled to send the request to the developers, then the installation package should be available.
I've tested this and the download link is sent to your email address, but to actually be able to download it, a confirmation is needed. Simply click the link in the email and you'll be taken to the download page.
