As it turns out, accessing significant amounts of real-time flight data, as required by this app, is neither publicly accessible nor cheap (hence the need to ch

As it turns out, accessing significant amounts of real-time flight data, as required by this app, is neither publicly accessible nor cheap (hence the need to charge for the app). There are also many other costs associated with developing even a small iPhone app to this level of quality. I'm actually quite proud of myself for keeping the costs so low. Try asking some big companies what they spent on their apps - you might be in for a surprise (think huge numbers)!