Is there something similar to iOS's canOpenURL to check URL schemes for mobile browsers? [duplicate]

Answer 1

You may try placing that URL in an iframe and wait for some seconds. If you are not being redirected to an app, it means that it's not registered.

setTimeout(function() {
  alert('It seems that your device does not support our feature.');
}, 1000);

document.write('<iframe style="border:none; width:1px; height:1px;" src="pic2shop://"></iframe>');