Notifications are alerts or messages that inform users about important updates or events. They can appear on various devices, such as smartphones, tablets, and computers, and are designed to grab the user's attention, ensuring they don't miss critical information. Notifications can be related to applications, emails, or system updates, enhancing user engagement and experience. In today's digital landscape, notifications play a crucial role in keeping users informed and connected. They can be customized to suit individual preferences, allowing users to manage what information they receive and how they receive it. This personalization helps reduce information overload and improves overall satisfaction with digital services.