A mobile app is a software application designed to run on smartphones and tablets. These apps can be downloaded from app stores like the Apple App Store or Google Play Store. They serve various purposes, including communication, entertainment, productivity, and education, making it easier for users to access services and information on the go. Mobile apps can be native, web-based, or hybrid. Native apps are built specifically for one platform, such as iOS or Android, while web-based apps run in a mobile browser. Hybrid apps combine elements of both, offering flexibility and broader accessibility across different devices.