Web applications provide business and customers with a huge range of benefits compared to non-Web based applications:
1. By developing project as a Web application (as opposed to a desktop application), you immediately make it accessible over the web – delivered to people or businesses with Internet access and a modern Internet browser.
2. Web applications are much easier to update than their desktop counterparts. To update a Web application, the amendments only need to be made to one place: the server on which the Web application runs. To update a Desktop application, however, is a much more complicated task as updates require to distributed to each and every one of the end users of the application.
3. Desktop applications which need to be installed on every user’s machine, Web applications are accessible by anyone with an Internet connection. In the same way as the Internet has revolutionised the way we shop, it’s also revolutionised the way we interact with computers.
If it's possible to have your service or product run as a Web application rather than a desktop application, it makes sense to do so: the Web makes it cheaper and faster to reach a larger audience than the traditional method of developing, testing, packaging and distributing software to be installed on an individual user’s computer.