If you spend much time on the internet, you'll notice that apps are everywhere. Whether you're doing online banking, shopping, looking for a flight schedule, a calendar, or checking statuses on social networking sites, you're using a web application.
The user experience on a website can be greatly enhanced with a good web application. Apps are not one-size-fits-all, so you need the insight of real professionals to foresee and meet the various challenges. A bad app is worse than no app at all.
For maximum exposure, try a Facebook app, or an iPhone app. Matcha Design is a licensed iOS Developer. Desktop, web, Facebook, iPhone, iPad, Android, each platform has different benefits and challenges. In any case, you need an interface that maximizes usability, and efficient, stable code.