As more people connect online through mobile devices, apps continue to grow in popularity. There are apps for almost every need: health, news, social networking, entertainment, and more, all designed to make the user's life run more smoothly. And app developers are growing in number by the day, turning their talent into a business. This volume gives readers all the tools they need to master the world and business of app development. It is a terrific read for current app developers or anyone interested in going into the field.