An app store is a digital distribution platform where users can browse, download, and install software applications for their devices, typically smartphones and tablets. These platforms are curated by the operating system providers, such as Apple’s App Store and Google Play Store, and offer a wide range of applications across various categories including games, productivity tools, and social networking apps. App stores provide a centralized location for users to discover and access new software, helping to streamline the process of acquiring and managing applications on mobile devices.