diff --git a/openvidu-android/app/src/main/res/values/strings.xml b/openvidu-android/app/src/main/res/values/strings.xml
index 39b2187b..84422227 100644
--- a/openvidu-android/app/src/main/res/values/strings.xml
+++ b/openvidu-android/app/src/main/res/values/strings.xml
@@ -1,4 +1,6 @@
 <resources>
+    <!-- WARNING: this application_server_url is not secure and is only meant for a first quick test.
+	     Anyone could access your video sessions. You should modify the application_server_url to a custom private one -->
     <string name="application_server_url">https://demos.openvidu.io/</string>
     <string name="app_name">OpenVidu Android Sample</string>
     <string name="start_button">Join</string>
@@ -13,4 +15,4 @@
     <string name="accept_permissions_dialog">GIVE PERMISSIONS!</string>
     <string name="cancel_dialog">CANCEL</string>
     <string name="no_internet_connection">NO INTERNET CONNECTION, PLEASE CHECK YOUR CONNECTION</string>
-</resources>
+</resources>
\ No newline at end of file
diff --git a/openvidu-ionic-cordova/src/app/app.component.ts b/openvidu-ionic-cordova/src/app/app.component.ts
index 6eff4fe8..6fff5dc0 100644
--- a/openvidu-ionic-cordova/src/app/app.component.ts
+++ b/openvidu-ionic-cordova/src/app/app.component.ts
@@ -64,10 +64,17 @@ export class AppComponent implements OnDestroy {
 			this.splashScreen.hide();
 		});
 		this.generateParticipantInfo();
+
+		// WARNING!! To make easier first steps with mobile devices, this code allows
+		// using the demos OpenVidu deployment when no custom deployment is provided
 		if (this.platform.is('hybrid') && this.APPLICATION_SERVER_URL === 'http://localhost:5000/') {
-			// To make easier first steps with mobile devices, use demos OpenVidu deployment when no custom deployment is provided
+			/**
+			 * WARNING: this APPLICATION_SERVER_URL is not secure and is only meant for a first quick test.
+			 * Anyone could access your video sessions. You should modify the APPLICATION_SERVER_URL to a custom private one.
+			 */
 			this.APPLICATION_SERVER_URL = 'https://demos.openvidu.io/';
 		}
+
 	}
 
 	@HostListener('window:beforeunload')
diff --git a/openvidu-ionic/src/app/app.component.ts b/openvidu-ionic/src/app/app.component.ts
index dacb33d8..0c234cae 100644
--- a/openvidu-ionic/src/app/app.component.ts
+++ b/openvidu-ionic/src/app/app.component.ts
@@ -61,6 +61,10 @@ export class AppComponent implements OnDestroy {
 		// WARNING!! To make easier first steps with mobile devices, this code allows
 		// using the demos OpenVidu deployment when no custom deployment is provided
 		if (this.platform.is('hybrid') && this.APPLICATION_SERVER_URL === 'http://localhost:5000/') {
+			/**
+			 * WARNING: this APPLICATION_SERVER_URL is not secure and is only meant for a first quick test.
+			 * Anyone could access your video sessions. You should modify the APPLICATION_SERVER_URL to a custom private one.
+			 */
 			this.APPLICATION_SERVER_URL = 'https://demos.openvidu.io/';
 		}