Cardia - HRR and HRV

Two numbers, thirty seconds, zero hardware. Cardia reads your heart rate and HRV through your fingertip - and now syncs to Apple Health.

Your heart rate. And your rhythm. No watch required.

Cardia turns your iPhone's camera and flash into a pulse sensor. Rest a fingertip over the lens, hold still for about 30 seconds, and get two numbers: heart rate (BPM) and heart rate variability (RMSSD).

HOW IT WORKS

Light from the flash passes through your fingertip. Each heartbeat shifts its colour, and the camera reads that rhythm using a technique called photoplethysmography (PPG). Nothing is recorded, and video never leaves your phone.

WHAT YOU GET

• Heart rate and HRV from one 30-second reading • A live camera view and pulse waveform while you take it • Charts over 7, 30, and 90 days • Context tags such as morning, after coffee, after exercise, and more, plus notes • Your averages by context, side by side, so you can compare them • A daily reminder at the time you pick

CARDIA PRO

• Unlimited readings. The free version includes one reading per day • Filter your history by context • Sync readings to Apple Health • No commitment. Cancel anytime.

PRIVATE BY DESIGN

Readings stay on your phone. Export everything as CSV whenever you like. No account. No ads.

Cardia is a wellness tool. It is not a medical device and does not diagnose, treat, or monitor any condition.

TERMS: https://www.koirala.studio/apps/cardia/terms PRIVACY: https://www.koirala.studio/apps/cardia/privacy