Mobile application software has become an integrated component of the way many people socialize, run businesses, schedule appointments, and entertain themselves. The term app is now commonly understood to mean any portable software application that runs on mobile phones. When Apple’s App Store opened in 2008, it revolutionized the software industry. Since then, however, the amount of mobile content available has increased rapidly, and building a great product is no longer enough to achieve success. To compete in the app world, an app must be skillfully designed, marketed, and promoted.