Heart Rate Monitor - HeartIn is a health app that tracks heart rate, HRV, pulse, blood pressure, and SpOu2082 levels using a phone camera and external inputs.

Download Heart Rate Monitor - HeartIn from Google Play Store or Apple App Store, then follow installation prompts to set it up on your device.

Upon opening the app, grant necessary permissions, place your finger on the camera lens, and follow on-screen instructions to begin monitoring.

The app offers heart rate checks, HRV tracking, pulse monitoring, blood pressure logs, SpOu2082 recording, and daily rhythm insights via Wear OS integration.

Customize settings such as measurement units, notification preferences, and connected Wear OS devices under the app's settings menu.

Save favorite content by bookmarking specific readings or trends within the app's history section for future reference.

Share health data with friends or doctors by exporting reports via email or saving screenshots directly from the app interface.

Access detailed information through visual charts and trend graphs available in the HRV and heart rate tracking sections of the app.

The app requires camera access for heart rate checks; manage these permissions in your device's settings under app permissions.

Check for updates regularly in the app store, and ensure proper functioning by restarting the app periodically.