Notification extension is a useful feature that enhances the functionality of the MIT App Inventor platform. With this extension, developers can easily incorporate various types of notifications into their mobile applications, making them more interactive and engaging for users. One type of Notification extension for MIT App Inventor is the ToastNotification extension. This extension allows developers to display small, non-intrusive messages, known as toasts, on the user's screen. These toasts can provide important information or feedback, such as successful completion of a task, error messages, or prompts for further actions. The ToastNotification extension also supports customization options, enabling developers to modify the appearance and duration of the toast messages. Another type of Notification extension for MIT App Inventor is the PushNotification extension. This extension enables developers to send push notifications to users' devices, even when the application is not actively running. Push notifications are valuable for keeping users informed about updates, new content, or important announcements. The PushNotification extension allows developers to create customized notifications and send them to specific groups of users, ensuring targeted communication. Furthermore, there is the LocalNotification extension available for MIT App Inventor. This extension allows developers to schedule and display local notifications within their apps. Local notifications are particularly useful for reminders, event notifications, or time-sensitive alerts. They can be customized to include specific content, such as a title, message, and even a sound. The LocalNotification extension provides convenient control over scheduling and managing these notifications, ensuring they are delivered at the appropriate time. Overall, these various types of Notification extensions for MIT App Inventor grant developers the ability to deliver important information to users in an appealing and functional manner. By utilizing these extensions, developers can enhance the user experience by providing timely updates and relevant alerts within their applications.