I have this page:
https://www.finjanmobile.com/vital-security-vpn-4/
and now have download buttons for IOS and Android near the top. We will also have Windows and Mac clients so rather than displaying 4 download buttons with different links I would prefer to display one button depending on the user OS (mac/windows/IOS/Android). I have seen other companies do this. Ideally, the text of the button and the link will change depending on the OS version. How can this be done? I suppose if we cannot detect the users OS we can display a 5th button which will just take the user to a download page on our site where we list out the various versions and download links.
Thanks in advance.