LightPulse: Heart Rate Monitor

Cover the back camera with your fingertip. In about fifteen seconds, LightPulse gives you a heart rate in BPM. No wearable, no chest strap, no account. WHAT A MEASUREMENT TELLS YOU Each measurement is shown against the typical range for someone your age. If the signal is unsteady, LightPulse says so and asks you to try again. It will not show you a number it isn't sure of. CONTEXT, IF YOU WANT IT Add a tag to a measurement: Resting, After sleep, Exercising, After coffee, Stressed, Poor sleep. The tag stays with that measurement in your log. Tagging is optional. Untagged measurements still count. VARIABILITY AND STRESS, WITH PLUS Switch to the sixty-second Detailed measurement and LightPulse reads two more figures. Heart rate variability, or HRV, is how much the gap between your heartbeats changes. Stress is a standard index of how tightly those gaps cluster — tighter clustering, higher stress. Both come from the same measurement. Both move with rest, breathing, alcohol, illness and time of day. Yours are worth comparing with themselves, not with anyone else's. FREE AND PLUS Free gives you the complete fifteen-second measurement three times a day, and keeps your three most recent measurements. LightPulse Plus removes the daily limit and adds the sixty-second measurement with variability and stress. It opens your full history, and adds two more screens: your resting heart rate as it settles over time, and how your measurements compare across tags. Plus is a subscription. You can use LightPulse free for as long as you like. YOUR MEASUREMENTS ARE YOURS No ads. No sign-in. Measurements stay on your device and sync through your own private iCloud. The developer has no access to them. LightPulse saves measurements to Apple Health only if you turn that on. Deleting a measurement removes it from both at once. LightPulse is for wellness only. It isn't a medical device and can't diagnose anything. If something feels off, talk to a doctor. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/