Fetch HealtKit data from 3rd party devices

Question

Can my app fetch HealtKit data from third party devices? For example from Garmin? In HKSource documentation , it seems that user would have to use Garmin app to transfer HealtKit data from his/hers device to iOS device and only then my app could use that data:

devices need a companion app to collect and save the data to HealthKit.

Or can I write app, that would handle fetching data from 3rd party devices?

tl;dr Can my app get HealthKit data from 3rd party devices

Answer 1

Third party developers can provide import functionality to health app via the normal Health Kit API on iOS.

Some apps scrape or use web API such as Sync Solver exist to get FitBit data from the cloud to the local health app on iOS. Some such as Health Importer are more general. (proper disclosure: I work on this app)

We have an app on the store that is designed specifically for importing arbitrary CSV data into HealthKit / Health.App. i hope without API you can't do this.