A software program that is able to be used accessed over the World Wide Web using an Internet Browser but that is functional and contains data that is entered by the person using the WebApp. Most modern software is available primarily as a WebApp. The advantages of a WebApp are accessibility from anywhere on the Internet; no need to install software; no need for software updates; easy of deploying new versions by the software provider; and computing system independence. Examples of WebApps include virtually all systems provided by Google, many by Microsoft and Apple, but also many on-line booking systems and price comparison sites.