Apps are usually available through application distribution platforms, which began appearing in 2008 and are typically operated by the owner of the mobile operating system, such as the Apple App Store, Google Play, Windows Phone Store, and BlackBerry App World. Some apps are free, while others must be bought. Usually, they are downloaded from the platform to a target device, such as an iPhone, BlackBerry, Android phone or Windows Phone, but sometimes they can be downloaded to laptops or desktop computers.
Platforms we will be discussing are PhoneGap and Titanium Mobile Development Environment
Titanium is the leading mobile development environment of choice for hundreds of thousands of developers. With more than 67,364 mobile applications deployed on 208,686,918 devices, the award-winning Titanium environment helps organizations get to market 60% faster and achieve a significant competitive advantage.