At Beam AI, we make mobile SDKs for apps that enable them to monitor user stress through the selfie camera in real-time. Apps use this stress data to evaluate how their content and services are impacting user stress. Our technology extracts the user’s pulse wave by analyzing subtle color variations across the skin regions of the user’s face. The user’s pulse is then used to determine stress, heart rate, and heart rate variability. To determine stress, we analyze the variability of the user's heartbeats according to the Baevsky Stress Index which has been shown to provide an accurate quantitative measure of physiological stress. Our technology is 2x more accurate than competing methods and 6x faster to run on mobile devices.