Hello,
 
I'm using the meta tag for displaying my application ios in the app banner for iphone/ipad devices.
 

 
when I do tests using an Iphone, the banner worked very will if the application is installed, if it's not installed the banner is not showing.
 
I do also the same test with others applications like facebook and others, the banner works fine in all cases.
 
What can be the problem ?
 
Thank you !