Progressive Web Apps (PWAs) differ from regular web apps in several ways. PWAs are designed to look and feel like native apps and offer users an app-like experience while still being accessible via a web browser. Unlike regular web apps, PWAs are built on modern web technologies such as HTML, CSS, and JavaScript, making them faster and more reliable than regular web apps. PWAs also offer enhanced features such as push notifications, offline support, and background sync. Additionally, PWAs are designed to run on both desktop and mobile devices, making them more versatile than regular web apps. Finally, PWAs are designed to be discoverable, helping to increase engagement and conversion rates.