A progressive web app (PWA) combines the best of web and mobile applications, providing users with a seamless experience. Key features include offline capabilities, allowing access without an internet connection, and native app-like functionalities. PWAs also support push notifications, enhancing user engagement and retention. They are built using web technologies like HTML, CSS, and JavaScript, ensuring cross-platform compatibility. Notably, PWAs can be installed directly on a device’s home screen, offering a shortcut and reducing friction for users to access the applications.