diff --git a/composer.json b/composer.json
index 4b6d54f..0fd29a8 100644
--- a/composer.json
+++ b/composer.json
@@ -6,5 +6,8 @@
         "psr-4": {
             "UserFrosting\\Sprinkle\\UFTweaks\\": "src/"
         }
+    },
+    "require": {
+      "mobiledetect/mobiledetectlib": "^3.74"
     }
 }
\ No newline at end of file
diff --git a/src/ServicesProvider/ServicesProvider.php b/src/ServicesProvider/ServicesProvider.php
index 027de87..7a59ef3 100644
--- a/src/ServicesProvider/ServicesProvider.php
+++ b/src/ServicesProvider/ServicesProvider.php
@@ -17,6 +17,7 @@ use Psr\Http\Message\ResponseInterface as Response;
 use Psr\Http\Message\ServerRequestInterface as Request;
 use UserFrosting\Sprinkle\Core\Log\MixedFormatter;
 use UserFrosting\Sprinkle\UFTweaks\Twig\HasRoleExtension;
+use UserFrosting\Sprinkle\UFTweaks\Twig\MobileDetectExtension;
 
 
 /**
@@ -162,6 +163,7 @@ class ServicesProvider
             $twig = $view->getEnvironment();
 
             $twig->addExtension(new HasRoleExtension($c));
+            $twig->addExtension(new MobileDetectExtension($c));
 
             return $view;
         });
diff --git a/src/Twig/MobileDetectExtension.php b/src/Twig/MobileDetectExtension.php
new file mode 100644
index 0000000..0904c79
--- /dev/null
+++ b/src/Twig/MobileDetectExtension.php
@@ -0,0 +1,60 @@
+<?php
+
+/*
+ * AVSDev UF Tweaks (https://avsdev.uk)
+ *
+ * @link      https://git.avsdev.uk/avsdev/sprinkle-uf-tweaks
+ * @license   https://git.avsdev.uk/avsdev/sprinkle-uf-tweaks/blob/master/LICENSE.md (LGPL-3.0 License)
+ */
+
+namespace UserFrosting\Sprinkle\UFTweaks\Twig;
+
+use Detection\MobileDetect;
+use Psr\Container\ContainerInterface;
+use Twig\Extension\AbstractExtension;
+use Twig\Extension\GlobalsInterface;
+use Twig\TwigFunction;
+
+/**
+ * Extends Twig functionality for mobile detection.
+ *
+ * @author Craig Williams (https://avsdev.uk)
+ */
+class MobileDetectExtension extends AbstractExtension implements GlobalsInterface
+{
+    /**
+     * @param ContainerInterface $services
+     */
+    public function __construct(ContainerInterface $services)
+    {
+    }
+
+    public function getName()
+    {
+        return 'avsdev/uf-tweaks-mobileDetect';
+    }
+
+    public function getFunctions()
+    {
+        return [
+            // Add Twig function for checking permissions during dynamic menu rendering
+            new TwigFunction('isMobile', function () {
+                $detect = new MobileDetect();
+                return $detect->isMobile();
+            }),
+            new TwigFunction('isTablet', function () {
+                $detect = new MobileDetect();
+                return $detect->isTablet();
+            }),
+            new TwigFunction('isDesktop', function () {
+                $detect = new MobileDetect();
+                return !$detect->isTablet() && !$detect->isMobile();
+            }),
+        ];
+    }
+
+    public function getGlobals()
+    {
+        return [];
+    }
+}