Traditional websites may have users scroll or click to consume more information, or they may even enter email addresses or more personal information to make online purchases. However, web applications optimize the user experience (UX), so users can do more. And the Web application must be dynamically updated to handle these types of interactions..

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.

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.