diff --git a/lib/public/script.js b/lib/public/script.js
index 80dcaa3..8601ee7 100644
--- a/lib/public/script.js
+++ b/lib/public/script.js
@@ -5,7 +5,8 @@ function deepLink(options) {
   var androidPackageName = options.android_package_name;
   var playStoreLink =
     'https://market.android.com/details?id=' + androidPackageName;
-  var ua = window.navigator.userAgent;
+  var navigator = window.navigator;
+  var ua = navigator.userAgent;
 
   // split the first :// from the url string
   var split = url.split(/:\/\/(.+)/);
@@ -32,7 +33,13 @@ function deepLink(options) {
       return /Android/i.test(ua);
     },
     ios: function () {
-      return /iPhone|iPad|iPod/i.test(ua);
+      if (/iPad|iPhone|iPod/.test(ua)) {
+        return true;
+      } else {
+        return navigator.maxTouchPoints &&
+          navigator.maxTouchPoints > 2 &&
+          /Macintosh/.test(ua);
+      }
     },
   };
 
@@ -49,7 +56,7 @@ function deepLink(options) {
     document.location = url;
     setTimeout(function () {
       document.location = fallback;
-    }, 250);
+    }, 2500);
   }
 
   function launchIframeApproach(url, fallback) {
@@ -75,7 +82,7 @@ function deepLink(options) {
     // chrome and safari on ios >= 9 don't allow the iframe approach
     if (
       ua.match(/CriOS/) ||
-      (ua.match(/Safari/) && ua.match(/Version\/(9|10|11|12)/))
+      (ua.match(/Safari/) && ua.match(/Version\/(9|10|11|12|13|14|15)/))
     ) {
       launchWekitApproach(urls.deepLink, urls.iosStoreLink || urls.fallback);
     } else {