Breathing Zone vs Camera Heart Rate Variability

Slow down, reset, and breathe with purpose. Breathing Zone offers simple guided breathing exercises for calm, focus, relaxation, and sleep. Choose a breathing pattern, then follow clear visual, voice, sound, or Apple Watch haptic guidance. Adjust the pace and session duration for anything from a quick reset to a longer breathing practice. FEATURES ● Coherent Breathing, Box Breathing, 4-7-8, Extended Exhale, and more ● Custom breathing rates and session durations ● Beautiful visual breathing guides ● Voice prompts, ambient sounds, and haptic guidance ● Daily goals, reminders, activity tracking, and streaks ● A dedicated Apple Watch experience ● Apple Health integration for recording completed sessions as Mindful Minutes FEATURED AND RECOMMENDED ● TIME: "Calm yourself with Breathing Zone." ● Harvard Health: "When you find yourself under stress, Breathing Zone can help." ● Bloomberg: "The breathing trick that can make you more productive." ● New York Magazine: "I like Breathing Zone for its simplicity." ● HuffPost: "An effective guide to mindful breathing." ● University of Sydney: "Breathing Zone provides guidance on slow breathing."

Camera Heart Rate Variability is the first app that lets you record, plot and export time and frequency domain Heart Rate Variability Features - without requiring any heart rate monitor. Camera HRV uses a technique called photoplethysmography (PPG for short), which consists in detecting changes in blood volume during a cardiac cycle, by illuminating the skin and measuring changes in light absorption. PPG has become quite a popular non-invasive method for extracting physiological measurements such as heart rate and oxygen saturation. However, most applications today focus simply on heart rate or respiration rate. Supported devices for the camera measurement: iPhones 5, 5S, 6, 6S, 6+, 6S+, SE, 7, 7+, 8, 8+, X, XS, XS Max, XR, 11, 11 Pro, 11 Pro Max, 12 mini, 12, 12 Pro, 12 Pro Max, 13 mini, 13, 13 Pro, 13 Pro Max Camera HRV can assess cardiac autonomic regulation through quantification of sinus rhythm variability. Since HRV aims at quantifying autonomic regulations, it can be used as marker of sympathetic or parasympathetic predominance, and therefore become relevant in many applications. In athletes for example heavy training is responsible for shifting the cardiac autonomic balance toward a predominance of the sympathetic over the parasympathetic drive, and HRV analysis attempts to quantify this shift. Other applications span from stress monitoring, assessment of pathological conditions and even emotional regulation during financial decision-making. Main Features: - extracts, plots, stores and exports heart rate, rr-intervals, time and frequency domain heart rate variability features (AVNN, SDNN, rMSSD, pNN50, LF, HF, LF/HF) - configurable time window for feature extraction (30 seconds to 5 minutes) - automatic RR-interval correction - event annotation - comparison between up to 3 recordings lets you get a better understanding of autonomic regulation and sympathetic/parasympathetic activity under different contexts in a glance - data export/storage on iTunes and Dropbox (csv format, exports heart rates, rr intervals, events and computed features). Data export needs to be performed from the history -> recording view, by clicking on the export button (bottom left). - integration with the Health app (writes Heart Rate and Heart Rate Variability) Find out more at this link: http://www.marcoaltini.com/2/post/2014/01/heart-rate-variability-using-the-phones-camera.html