A Progressive Web App (PWA) is a web application that enables you to deliver a native app-like experience to users on mobile so that they have a fast, smooth, and engaging experience with your site.
A PWA provides site visitors with a smooth, app-like experience, loading instantly when a user re-enters the site, even if the device is offline, it enables websites to launch via an icon on a user’s mobile device.
A PWA loads instantly, respond quickly to user interactions, and feel like a natural app. They do not need an app store for installation and enable users to re-enter the site instantly, even when a device is offline. PWAs update automatically when a site’s content is refreshed, and are only served via HTTPS, so they are always secure.