Marco Altini

PPG Logger

PPG Logger is the first and only app that lets you record, plot and export not only heart rate, RR intervals, time and frequency domain Heart Rate Var...

Heart Rate Logger

Heart Rate Logger is an app that lets you record, plot and export heart rate data using Bluetooth Low Energy (also called SMART or 4.0) heart rate mon...

StayFit app

StayFit is the first app able to quantify your fitness level by providing a new and unique biomarker, the Fitness Index. Using only your phone's camer...

Stressed Out

Stressed Out can quantify your psychological stress level and help you understanding how different events impact your physiology and wellbeing (includ...

Active app

Track your activity and physiology & gain unique insights using. Active automatically tracks your activity & sleep, together with your heart rate and ...

HRV4Training

HRV4Training helps you optimize your goals and prevent overtraining by measuring your Heart Rate and Heart Rate Variability. HRV4Training does not req...