A notes app is a software application designed to help users organize and store information. It allows users to create, edit, and manage digital notes, often with features such as tagging, searching, and syncing across devices. Notes apps can be used for a variety of purposes, including taking meeting notes, jotting down reminders, and storing ideas. They are often used on mobile devices, desktops, and laptops, and can be accessed from anywhere, making them a convenient tool for staying organized and productive.