Heartthrum

Heartthrum turns your iPhone into a simple pulse monitor. Place your fingertip on the back camera and see your heart rate in about 40 seconds.

Completely free. No ads. No subscriptions. No in-app purchases. No account. Your data never leaves your device.

MEASURE Place your finger on the camera and flash. Heartthrum reads the tiny color changes in your fingertip caused by your heartbeat and shows your pulse with a live waveform.

TRACK YOUR WELL-BEING Save each measurement with an optional context (resting, after activity, morning, evening) and how you feel. Follow your trends by day, week, or month.

BREATHE Relax with guided breathing at about six breaths per minute. Choose 1, 3, or 5 minutes.

APPLE HEALTH If you want, Heartthrum can save your measured heart rate to Apple Health. This is off by default and fully under your control.

PRIVACY FIRST Heartthrum collects no data at all. There are no trackers, no analytics, and no network connection. Everything stays on your iPhone.

Important: Heartthrum is not a medical device. Measurements are for wellness and general well-being purposes only and do not replace professional medical advice.