PulseQ: Heart Rate & HRV

Measure your heart rate and HRV (heart-rate variability) by resting a fingertip on the iPhone's rear camera and flash. No sensor or wearable needed. TWO MODES • Heart rate (20 s): a quick check of your current pulse • HRV (60 s): RMSSD, SDNN, pNN50 and mean IBI. If your finger slips, put it back and the measurement continues UNDERSTAND THE NUMBERS • General reference bands (normal / low / elevated), color-coded • Comparison with your own 30-day median: "your usual", "below your usual", "above your usual" • A "Reading the numbers" guide explains each metric, its reference ranges and how to measure well SEE THE TREND • Charts of heart rate and RMSSD over 7 days, 30 days or all time; tap a point for date and value • Last-7-day average versus the previous 7 days, with a short note on what it may mean • Everything is stored on your device and can be deleted any time HOW IT WORKS The camera…