From Clomosy Docs
function PlatformIsMobile: Boolean;
It provides information indicating that the application is running on a mobile platform. If the platform on which the application is opened is mobile, it returns True; otherwise, it returns False.
Example
var
isMobile : Boolean;
{
isMobile = Clomosy.PlatformIsMobile;
if isMobile
ShowMessage('The application is opened on a mobile platform.');
else
ShowMessage('The application is opened on a Windows platform.');
}