diff --git a/lib/helper/WebDriverIO.js b/lib/helper/WebDriverIO.js
index 724f74188..3c8d97897 100644
--- a/lib/helper/WebDriverIO.js
+++ b/lib/helper/WebDriverIO.js
@@ -1870,6 +1870,25 @@ class WebDriverIO extends Helper {
       ));
     });
   }
+
+  /**
+   * placeholder for ~ locator only test case write once run on both Appium and WebDriverIO
+   */
+  runOnIOS(caps, fn) {
+  }
+
+  /**
+   * placeholder for ~ locator only test case write once run on both Appium and WebDriverIO
+   */
+  runOnAndroid(caps, fn) {
+  }
+
+  /**
+   * placeholder for ~ locator only test case write once run on both Appium and WebDriverIO
+   */
+  runInWeb(fn) {
+    return fn();
+  }
 }
 
 function proceedSee(assertType, text, context, strict = false) {