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 think if you look at the guys that are trying to squeeze the most accuracy out of their .308 loads(target rifle and F Class shooters), you'll find that Vit N150 and Varget are probably the two most popular.