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Coinciding with recent growth in smartphone usage, mobile apps have skyrocketed in popularity over the last few years. In 2009 alone, there were roughly 2.5 billion fee-based mobile apps downloaded, and that number is projected to reach nearly 270 billion in 2017. But, the large quantity of downloads also suggests that apps often fail to keep the interest of their users. Data shows that over 90% of an application’s activity occurs within the first...