What Does Universal Windows Platform (UWP) Mean?
The Universal Windows Platform (UWP) is a versatile build environment built by Microsoft to allow for device-agnostic app creation. Apps created in UWP are not limited to one type of device: They can run on any modern Windows operating system including Windows 10 and newer.
Techopedia Explains Universal Windows Platform (UWP)
Developers can use UWP to create apps that can run on computers, smartphones and other Windows-OS devices, using an API resource base that allows for cross-device installation. Programmers can also use a variety of languages to build the apps. UWP apps are sold in the Microsoft Store and are the only type of apps sold there, giving an incentive for developers to learn and use the UWP framework. With the Windows Runtime native API, multiple languages are supported. Using UWP can also help creators to monetize apps in the Microsoft Store and across the Windows community.