Windows 10 Mobile is a mobile operating system developed by Microsoft. It was designed to provide a seamless experience across devices, allowing users to access apps and services similar to those on Windows 10 for PCs. The platform supports a range of applications from the Microsoft Store and integrates features like Cortana, the digital assistant. Released in 2015, Windows 10 Mobile aimed to unify the user experience across smartphones and tablets. However, it struggled to gain significant market share against competitors like Android and iOS. Ultimately, Microsoft discontinued support for the operating system in 2019.