What Are Chrome Apps?
Google Chrome Apps are web applications that run on the Google Chrome web browser. Chrome apps can be obtained from the Chrome Web Store where apps, extensions, and themes can be installed or bought. There are two types of apps, hosted and packaged, which have different locations of their executable and are targeted at different use cases.
Chrome apps can be hosted or packaged. Hosted apps have their background web pages on a remote server and the app acts like a bookmark or shortcut
Packaged apps were launched on September 5, 2013. They have features very similar to a native desktop app, namely offline capable (by default), can interact with hardware devices, and can access local storage. Packaged apps are not confined to the regular Chrome interface and can display without a classic window menu and operating system user interface elements.
Hosted apps are the first developed types of Chrome apps. They contain a single manifest file that contains the URL and additional information about the app. Hosted apps are usually offline and are subject to regular web page security restrictions.