By building a Chrome App, as opposed to going with a traditional web app or a native mobile app, you expand your potential audience and extend your development capability.
When you write a Chrome App, as opposed to an app that runs natively on a particular operating system, you immediately make your app available to a much wider audience.
To any desktop
Instead of writing and maintaining separate applications for Windows, OS X and Linux, you can write a single application that runs anywhere it runs. This includes Windows, Linux, and OS X.
To mobile devices [via Cordova]
Using Chrome-Apps for Mobile (MCA), you can deploy your applications to mobile and target hardware features only available on Android and IOS platforms.
You might be thinking, “If I write a standard web application, I can run it on any platform that has a web browser.” Of course, this is absolutely right, but remember that Apps extend your development capacity beyond what you can do with traditional web apps:
The best way to see what Chrome Apps look like is to install some.
Everyone! But some sectors have a special interest in Chrome Apps.
Device manufacturers The cross platform nature of Chrome Apps makes writing device drivers less painful. A device manufacturer only needs to write one application for configuring their device and it will run on any device.Educators
Chromebooks are an inexpensive, low-maintenance option for bringing laptops into every classroom. Chrome Apps make teaching easy with easy to install applications that run natively on Chrome books. For example: