Web app development is the creation of application programs that reside on remote servers and are delivered to the user’s device over the Internet.
Web application development is the process and practice of developing web applications.
Web Applications are dynamic web sites combined with server side programming which provide functionalities such as interacting with users, connecting to back-end databases, and generating results to browsers.
Examples of Web Applications are Online Banking, Social Networking, Online Reservations, eCommerce / Shopping Cart Applications, Interactive Games, Online Training, Online Polls, Blogs, Online Forums, Content Management Systems, etc..
Web apps are sometimes contrasted with native apps, which are applications that are developed specifically for a particular platform or device and installed on that device.