Originally, Phonon has been created for building hybrid apps with Apache Cordova by using web technologies such as HTML, CSS and JavaScript. Of course, there are many frameworks well known, but Phonon gives an intuitive and amuzing way of building apps. For example, the app's workflow can be defined with page events. When the user access on the page-X for the first time, the onCreate callback is called, when the page becomes visible, the onReady callback is called, etc. You can also prevent the automatic close if an action is required. Furthermore, this framework is also an UI framework proposing many features that are generic, which means they don't differ from mobile platforms. On the other hand, you can define your style according to the platform, because Phonon adds the OS class in the body tag.