This document provides an overview of the global mobile app industry and trends. It discusses the rapid growth of smartphones worldwide since 2007, with Android and iOS now dominating the market. Android had 700k apps in 2012 growing to over 775k in 2012, while the iOS App Store had 50 billion downloads by May 2013. The top 500 apps on Android and iOS now reach over 52 million users, similar to major newspapers and TV shows. The mobile app market is also growing rapidly in downloads and revenue, increasingly shifting to free apps with in-app purchases and advertising. The document also analyzes the mobile app landscape and trends specifically in Taiwan.