This document summarizes the HeartCheck Unofficial App for the Xiaomi Mi Band Pulse. It provides information on the app's development team, changelog highlighting successes in connecting the Mi Band 1S and 2 and implementing heart rate monitoring, an initial user evaluation noting positive feedback and suggested improvements, and a TODO list of further planned work including improving multi-threading, implementing Mi Band 2 heart rate monitoring, developing a more advanced heart rate algorithm, and adding statistics tracking.