Universal Windows Platform Applications, or UWP apps, are software applications designed to run on the Windows 10 and later operating systems. They provide a consistent user experience across various devices, including PCs, tablets, smartphones, and Xbox consoles. UWP apps are built using a common set of APIs, allowing developers to create applications that can adapt to different screen sizes and input methods. UWP apps are distributed through the Microsoft Store, making it easy for users to find and install them. They support features like live tiles, notifications, and background tasks, enhancing user engagement and functionality. UWP aims to unify the app experience across the Windows ecosystem.