A whiteboard app is a digital drawing and note-taking app that allows users to create and edit digital images using a variety of tools and colors. With a whiteboard app, users can easily sketch, write, and draw on a virtual canvas, The app also includes features such as erasing, undo/redo, and color selection, making it a versatile tool for students, artists, and anyone who wants to capture and share their ideas in a visually appealing way.