PWA (Progressive Web Apps) is a relatively new technology which is used to create fast, reliable, and engaging mobile app-like experiences on web browsers, without having to install them on a device. It uses modern web-technologies such as service workers and web manifest to create an experience similar to a native app, while still leveraging the greater reach of the web. In Magento, PWA helps to deliver better user experiences to customers through improved performance, reliability, and user engagement features such as push notifications, A/B testing, and offline-support. It also helps to reduce the cost and time associated with developing, publishing, and maintaining a native application. All in all, PWA is a valuable technology for businesses hoping to provide seamless experiences for customers across all devices and platforms.