I was wondering if it's possible to detect if an iOS user is using the webapp, or just visiting the normal way with safari browser. 

The reason I want to achieve is that on a iOS webapp when a user click on a link, he will get redirected to the Safari browser. So I'm using the following workaround to make him stay in the webapp(prevent the switching to safari browser).

```
$( document ).on("click",".nav ul li a",
        function( event ){

        // Stop the default behavior of the browser, which
        // is to change the URL of the page.
        event.preventDefault();

        // Manually change the location of the page to stay in
        // "Standalone" mode and change the URL at the same time.
        location.href = $( event.target ).attr( "href" );

        }
    );

```

But I want this workaround only to happen when the user is using the webapp, I want it to be conditional for webapp users. So not on the default safari browser.