To share your HeartStar measurements with Apple's Health app, follow these steps:
- Tap the User tab at the bottom of the screen.
- Tap the "Sync and Share Data" button.
- Find the "Sync with the Health app" switch on the screen. Slide it to the right to enable sharing.
- Select which measurements you would like HeartStar to write to and read from the Health app. Note that both the Systolic and Diastolic measurements need to be selected when sharing.
To stop sharing with the Health app, simply slide the "Sync with the Health app" switch to the left.