This document discusses mobile app revenues and usage. It projects that global mobile app revenues will grow from $41.1 billion in 2015 to over $101 billion in 2020. It notes that with over 2.56 billion smartphone users expected in 2018, mobile apps have become an important part of many individuals' lives. The document aims to convince clients that developing a mobile app can provide fast and easy use, a nice design, downloads, optimization, real numbers, and financial gains over time and money.