This document discusses metrics for analyzing user behavior in business-to-consumer (B2C) mobile applications. It covers tracking users through the lifecycle stages of acquisition, activation, engagement, monetization, and retention or churn. Cohort analysis and funnel reports are described to analyze retention of first-time users or adoption of new features. Mobile metrics like daily/weekly/monthly active, converting, and retained users are outlined to measure stickiness and monetization. The document aims to explain how these analytics can help improve the user experience and identify desirable versus undesirable user segments.