This document summarizes exploratory user research conducted by Diane Loviglio and 8 teammates over 4 weeks with 10 mobile app users. The research aimed to understand when, why and how people use apps, their experience discovering, getting, organizing and using apps, and their mental models of and views on the app ecosystem and paid apps. The researchers employed multiple qualitative methods like diary studies, interviews, show-and-tell sessions, observation, paper prototyping exercises, think-aloud protocols and drawing to collect data from participants in the field.