Since the launch of the iPhone inthe app market has exploded faster than anyone could have predicted. Today, nearly 10 years later, over 77 percent of Americans own a smartphone that they use on a daily basis. In fact, experts predict that between andrevenue generated by apps will double! Interestingly, free apps are responsible for most of that revenue. Indeed, Google Play reported 98 percent of app revenue comes from free apps. You might think free apps are not jow profitable as paid apps but the truth is there are many ways to monetize free apps. You can even make more money from free apps than from a paid app. If you recently decided to create an app and test the marketplace, then you came to the right place. There are numerous success stories of people who made free apps that bring in hundreds of thousands of moneu a day. The number one source of revenue for app developers comes from in-app ad-revenue. The vast majority of free apps depend on this source of revenue to remain afloa...