How to share your Health and Fitness Data with Apps, Devices

You can share health and fitness data stored in the Health app with various apps and devices. You can give other apps permission to share health and fitness data with Health. 

For example, if you install a workout app, its exercise data can appear in Health. The workout app can also read and make use of data (such as your heart rate and weight) shared by other devices and apps. If you didn’t give an app permission to share data with Health when you set up the app, you can give permission later. You can also remove permission from an app.

To share your records from healthcare providers with apps:

1. To grant access, choose which categories to share—such as allergies, medications, or immunizations—when asked.
2. Choose whether to grant access to your current and future health records or to only your current records.
   If you choose to share only your current records, you’re asked to grant access whenever new records are downloaded to your iPhone.

To stop sharing health records with the app, turn off its permission to read data from Health.

The Workout app can also read and make use of data (such as your heart rate and weight) shared by other devices and apps. If you didn’t give an app permission to share data with Health when you set up the app, you can give permission later. 

° Tap your profile picture or initials at the top right.

° If you don’t see your profile picture or initials, tap Summary or Browse at the bottom of the screen, then scroll to the top of the screen.

° Below Privacy, tap Apps or Devices.The screen lists the items that requested access to Health data.

° To change the access for an item, tap it, then turn on or off permission to write data to—or read data from—Health.

(This how-to is based on my experiences and info on Apple’s support pages.)