As of October 2019, this product is no longer for sale for Mac. It is not compatible with Mac OS X Catalina (10.15).
Here are offline activation instructions for PC or Mac apps sold on the Visible Body web site.
When you activate your software, you may be asked for an Authorization Code, if your computer cannot connect to the activation server. If you need an Authorization Code, please use the appropriate link for your product to generate the code:
My Incredible Body for Windows:
https://checkpoint2manager.yummy.net/Activate/7ccd0a21-bb5a-4b78-82...
My Incredible Body for Mac:
https://checkpoint2manager.yummy.net/Activate/a769cd89-0136-418a-8a...