This document summarizes statistics about 10 popular apps that sync to people's daily lives. It provides data on the large user bases and high levels of daily activity on apps like Uber (1 million rides per day), Tinder (26 million matches per day), Twitter (6,000 tweets per second), Snapchat (9,000 photos shared per second), Instagram (300 million users), WhatsApp (30 billion messages sent daily), and Candy Crush (93 million daily players and 1 billion games played daily). The apps track many aspects of modern life from transportation and social connection to fitness, games, and payments.