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.
Easy MOA and Mil Calculator Free works and it's free. So is Strelok non pro version but I am not sure if it has the calculator in the free version. It's also not quite as intuitive. Still one of my favourite ballistic apps though.
