The document summarizes key mobile app trends in 2013, including: - Over half of the world's population owned a mobile phone, with 91% owning a smartphone. - 80% of mobile time was spent using apps, with the most time spent on social media, entertainment, and games. - The Apple App Store had over 80,000 apps while the Google Play Store had over 700,000 apps available. - Most apps on the Apple App Store were free, while 72% of apps on the Google Play Store were also free. - Asia Pacific accounted for the largest percentage of app users at 32%.