Add Utils.platformString() and Utils.isIOS()

src/core/session.ts

      */
     static isSupported(): boolean
     {
-        // navigator.platform is deprecated
-        const platform = ((navigator: any): string =>
-            typeof navigator.userAgentData === 'object' ?
-            navigator.userAgentData.platform :
-            navigator.platform
-        )(navigator);
-
         // If Safari or iOS, require version 15.2 or later
-        if(/(Mac|iOS|iPhone|iPad|iPod)/i.test(platform)) {
+        if(/(Mac|iOS|iPhone|iPad|iPod)/i.test(Utils.platformString())) {
             const ios = /(iPhone|iPad|iPod).* (CPU[\s\w]* OS|CPU iPhone|iOS) ([\d\._]+)/.exec(navigator.userAgent); // Chrome, Firefox, Edge, Safari on iOS
             const safari = /(AppleWebKit)\/.* (Version)\/([\d\.]+)/.exec(navigator.userAgent); // Safari on macOS (also newer iPads, Edge on iOS...)
             const matches = safari || ios; // match safari first (min version)

src/utils/utils.ts

     {
         return computeResolution(resolution, aspectRatio);
     }
+
+    /**
+     * Returns a string containing platform brand information
+     * @returns platform brand information
+     */
+    static platformString(): string
+    {
+        return ((navigator: any): string =>
+            typeof navigator.userAgentData === 'object' ? // prefer the NavigatorUAData interface
+            navigator.userAgentData.platform : // use only low entropy data
+            navigator.platform // navigator.platform is deprecated
+        )(navigator);
+    }
+
+    /**
+     * Checks if we're on iOS
+     * @returns true if we're on iOS
+     */
+    static isIOS(): boolean
+    {
+        const platform = Utils.platformString();
+
+        if(/(iOS|iPhone|iPad|iPod)/i.test(platform))
+            return true;
+
+        if(/Mac/i.test(platform) && navigator.maxTouchPoints !== undefined) // iPad OS 13+
+            return navigator.maxTouchPoints > 2;
+
+        return false;
+    }
 }