diff --git a/apps/workflowengine/js/admin.js b/apps/workflowengine/js/admin.js
index ce85c8c008..ec921f8c22 100644
Binary files a/apps/workflowengine/js/admin.js and b/apps/workflowengine/js/admin.js differ
diff --git a/apps/workflowengine/js/requestuseragentplugin.js b/apps/workflowengine/js/requestuseragentplugin.js
new file mode 100644
index 0000000000..8413d52ac4
Binary files /dev/null and b/apps/workflowengine/js/requestuseragentplugin.js differ
diff --git a/apps/workflowengine/lib/AppInfo/Application.php b/apps/workflowengine/lib/AppInfo/Application.php
index c1dc65fe81..82a07aa59e 100644
--- a/apps/workflowengine/lib/AppInfo/Application.php
+++ b/apps/workflowengine/lib/AppInfo/Application.php
@@ -58,6 +58,7 @@ class Application extends \OCP\AppFramework\App {
 					'filemimetypeplugin',
 					'filesizeplugin',
 					'filesystemtagsplugin',
+					'requestuseragentplugin',
 					'usergroupmembershipplugin',
 				]);
 			},
diff --git a/apps/workflowengine/lib/Check/RequestUserAgent.php b/apps/workflowengine/lib/Check/RequestUserAgent.php
new file mode 100644
index 0000000000..241b19136a
--- /dev/null
+++ b/apps/workflowengine/lib/Check/RequestUserAgent.php
@@ -0,0 +1,71 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\WorkflowEngine\Check;
+
+
+use OCP\IRequest;
+
+class RequestUserAgent extends AbstractStringCheck {
+
+	/** @var IRequest */
+	protected $request;
+
+	/**
+	 * @param IRequest $request
+	 */
+	public function __construct(IRequest $request) {
+		$this->request = $request;
+	}
+
+	/**
+	 * @param string $operator
+	 * @param string $value
+	 * @return bool
+	 */
+	public function executeCheck($operator, $value)  {
+		$actualValue = $this->getActualValue();
+		if (in_array($operator, ['is', '!is'])) {
+			switch ($value) {
+				case 'android':
+					$operator = $operator === 'is' ? 'matches' : '!matches';
+					$value = IRequest::USER_AGENT_CLIENT_ANDROID;
+					break;
+				case 'ios':
+					$operator = $operator === 'is' ? 'matches' : '!matches';
+					$value = IRequest::USER_AGENT_CLIENT_IOS;
+					break;
+				case 'desktop':
+					$operator = $operator === 'is' ? 'matches' : '!matches';
+					$value = IRequest::USER_AGENT_CLIENT_DESKTOP;
+					break;
+			}
+		}
+		return $this->executeStringCheck($operator, $value, $actualValue);
+	}
+
+	/**
+	 * @return string
+	 */
+	protected function getActualValue() {
+		return (string) $this->request->getHeader('User-Agent');
+	}
+}