Context. Hana provides you with an alternative context to do your work in Web-Apps. Before Hana, you worked in a browser, or if you were industrious, you hacked* up a single purpose app for one or more of your Web-Apps. You may have even found some open source or commercial products to help you with some of these apps. But in the end, you always had to start in a browser, then find or hack a client app to access your Web-Apps.
Hana eliminates the need for hacking or searching for specialized client apps for your Web-Apps. Hana is THE app for working Web-Apps. That is why we call it the Web-App App!
Hana provides that alternative context that you have been seeking. No more downloads, no more Xcode projects!
If you are thinking to yourself, "What is this 'context' that they are nattering on about?", then continue reading!
Working in a Web-App in a web browser is kinda like trying to work in the stands at a ballpark, in the sand at a playground or in a pool. It is like working in a place YOU associate with playing and has a very high distraction quotient. Hana provides an alternative context. The web browser's context is for general web access, browsing and searching. Hana's context is for specific web access, working and being organized.
So context is important. Your employer, school or maybe even YOU, doesn't allow you to work in contexts that have a high potential for being counter productive. While for some people this is not a problem, for the rest of us humans, it is easily a problem. So try Hana's context and see if you are more productive.
* - Hacking is not the evil thing Hollywood or public features will have you think it is. Cracking is the bad thing, as in cracking into a safe or system without permission. Hacking is what programmers do a lot. This is good. This is how new features are often tried out.