Progressive Web application, progressive Web application is a relatively new type of Web application, whose behavior is similar to native application and generally better than native application. They are Web applications that follow a slightly different approach and involve a set of additional technologies, such as service workers, checklists, and push notifications. Progressive Web applications can be downloaded to your device and stored on your home screen, making them accessible and "local like", and unlike Web applications, they can be accessed and used offline..

Like any Web application, PWA resides in a Web browser. Users can access PWA just like any website. However, owning PWA means going through the classic download and installation process of mobile applications that users expect. But this is a good thing, because PWA can always be easily obtained from the user's equipment, and PWA software is customized

Web applications have typical front-end and back-end Web development technologies. Theoretically, Web applications are closely related to websites, so Web application development and Web development have many common features. For example, in the front end, Web application developers use JavaScript, CSS, and HTML. The back end of a Web application may also use the server-side language that developers use to build websites, such as Ruby, Python, and JAVA.