Ben Greenfield - NatureBeat is a lifestyle app for iPhone users that delves into bio-hacking by analyzing HRV, stress levels, and other health metrics. It integrates data from popular fitness platforms like MapMyFitness, Fitbit, and Withings to provide insights into how various activities impact your health metrics. NatureBeat requires a Bluetooth Low Energy Heart Rate Monitor for accurate HRV measurements and is compatible with iOS 8 and newer devices.

With four main components - Monitor Stress, HRV for Training, Food Sensitivity, and Data Correlation - NatureBeat offers real-time stress monitoring, training recommendations based on HRV, food sensitivity tests, and data correlation from various sources. Users can also customize their Relax screen images, track heart rate recovery, food intake responses, and save sessions for further analysis.