When the Apple iPhone was released, developers rushed to create applications for the device in what could be considered a gold rush of the mobile era. Entrepreneurs like Klutch22 were able to see the opportunity that existed and that has now resulted in over 500,000+ apps available in the iTunes marketplace. The difference that app development has against lots of other business ventures is the mass reach available through the millions of iPhone, iPod, and now iPad users. Let’s not forget about the Android market which has now surpassed the iPhone in market share. There are several ways to make money from apps whether it be from paid apps to free apps with ads but the reality remains that money can be made with the simplest ideas which we will show you with these 12 apps that gross well over $100,000.