What is PWA?

A progressive web app (PWA) is a website that looks and behaves as if it is a mobile app. PWAs are built to take advantage of native mobile device features, without requiring the end user to visit an app store, make a purchase and download software locally. Instead, a PWA can be located with a search engine query and accessed immediately through a browser.

The goal of PWAs is to blur the distinction between native apps and the mobile web by bringing most of the benefits of native mobile apps to the mobile browser. PWAs use standards-based technologies and run in a Container that is secure and accessible to anyone on the web. They can send web push notifications, work offline and be accessible from the home screen, just like a mobile app from an app store.

Source: https://www.techtarget.com/whatis/definition/progressive-web-app-PWA