The app explosion drove the humble smartphone to giddy heights, but just how often do people use apps, what do they use, and how much time do they spend on them? We asked App Annie CEO, Bertrand Schmitt, all that and more.
Google Play and Apple's App Store are only growing. A hefty 19 billion apps were downloaded from Google Play in the fourth quarter, giving Google a 145-percent lead over Apple in app downloads.