Apps are free-standing versions of your website. They do not require a browser to work on a mobile device, nor do they require an Internet connection (once they have been downloaded and installed). Apps are written in high-level programming language, and professional-level apps require substantial investment in high-level coding.
Dreamweaver CS6 partners with and serves as a frontend for the PhoneGap toolset. Those tools convert web pages built with HTML5, CSS3, and JavaScript (generally speaking, that means jQuery Mobile pages in Dreamweaver) into apps for a range of mobile operating systems including Android. If you are a registered Apple developer, you can use PhoneGap and Dreamweaver to create Apple iOS apps as well.
Dreamweaver CS6's PhoneGap Build Service manages the whole process of building, testing, and—on a simple level—distributing apps. Pages built with jQuery Mobile are uploaded to the PhoneGap server where they are converted to apps and saved.
You can test apps by using...