Research shows mobile apps are growing at a rate of 29.8% each year, and that the 1.2 billion mobile users currently using apps will climb to 4.4 billion by the year 2017.
Building a Mobile App 101: Interview with Dan Katcher, Rocket Farm Studios

Research shows mobile apps are growing at a rate of 29.8% each year, and that the 1.2 billion mobile users currently using apps will climb to 4.4 billion by the year 2017.
So, if you don’t know where to get started with a blueprint for your app, Rocket Farm Studios can take the pressure off.