What is a Progressive Web App (PWA)?

A Progressive Web App (PWA) is a type of application software delivered through the web, built using common web technologies including HTML, CSS, and JavaScript. It is intended to work on any platform that uses a standards-compliant browser, including both desktop and mobile devices.

The goal of a PWA is to provide an app-like experience on the web, with the convenience of not having to download or install any software from an app store. It combines the flexibility of web development with the experience and features typically associated with native apps. Key features of PWAs include:

1. Responsiveness: They fit the layout to any screen size, making them adaptable to desktop, tablet, or mobile devices.
2. Connectivity independence: They can work offline or with a limited network connection, leveraging service workers for background tasks and caching.
3. App-like interface: PWAs are designed to mimic the navigation and interactions of native apps, providing users with a seamless, integrated experience.
4. Push notifications: Similar to native apps, PWAs can send push notifications to users, enhancing engagement and user retention.
5. Safety: Served via HTTPS, PWAs ensure that all data transferred between the browser and the website is encrypted and secure.
6. Discoverability: Being web-based, they are discoverable in search engines, which can help with increasing visibility and accessibility.
7. Installable: Users can “install” PWAs on their home screen without the need for