Hello, I am currently working on an app that uses HealthKit to sync health data to a backend server that performs analysis on this data. I am keeping track of the synced data with the HKQueryAnchor I receive for each query I make. I want to address an edge case: if a user has multiple devices running the app, would it make sense to store the anchor on my backend? This would ensure that other instances of the app do not sync data that has already been synced from another device. Thank you for your help!
Can I use an HKQueryAnchor across multiple devices?
Recommended
HKQueryAnchor
is per-device, and hence is not supposed to be used across devices.
Best,
——
Ziqiao Chen
Worldwide Developer Relations.