This document discusses mobile engagement as both a crisis and an opportunity. It begins by outlining the growing amount of time users spend on mobile apps and the high percentage of apps that are used only once before being deleted. The document then frames this as a potential mobile engagement crisis. It proposes addressing this issue through focusing on the app lifecycle stages of acquire, engage & grow, and retain users. Specific tactics are provided for each stage, such as app store optimization for acquisition, push notifications and in-app messages for engagement, and personalized messaging for retention. The presentation argues that segmentation, targeting messages to the right users through multiple channels, and driving conversions can help shift engagement in a positive direction.