Earlier today, I was having trouble figuring out how to download iFlyGPS for Windows.  Though the sales info said it ran under Windows, I couldn't find a link for it in the dropdown menus at the top, nor a search function to look for it.  (Yes, I missed the link at the bottom of the home page.)
I purchased it sight unseen based on Reddit reviews, but even the receipt doesn't give instructions for how to download the software.
When I found and downloaded the pilot guide at https://www.iflygps.com/Portals/0/Documentation/iFlyGPS%20Pilots%20Guide%2011.0.pdf I looked up where to find the Windows download.
On page 8, it says:
Windows
The Windows version can be downloaded from https://www.iflygps.com/Windows.
This is incorrect.  For anyone who, like me, has trouble finding the download link, it is at:
http://www.iflygps.com/WindowsDownload
Hope this helps,
SW