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.
Never heard of it. Do you have a link to one somewhere? I thought you might mean a Bushnell AR Optic 1-4 in which case there was one on EE recently. Not sure if it's still on there.