While you are on the site, in your browser find and click "Add to Home Screen" A CGN beaver app icon will then be created to your phone that is directly link to the site.
Note: This feature may not be available in some browsers.
I had the same thing happen when I was sighting in a friends new Zeiss scope. I couldn't believe what I was seeing on a $2k scope. At first I thought the scope had rotated in the rings.