HealthSyncApple Health app sync
Sync Apple Health data to your own backend.
HealthSync is a native iOS app that reads selected HealthKit data on-device and uploads queued JSON batches to a backend API you configure.
- Source
- Apple Health through HealthKit
- Destination
- Your REST backend
- Access
- Read-only health permissions
- Mode
- Automatic changes, scheduled catch-up, manual backfill
How it works
The website never reads your Apple Health data.
Apple Health access runs through HealthKit on the iPhone after the user grants permission. HealthSync handles HealthKit authorization, selected data type toggles, local persistence, and sync inside the iOS app.
Apple describes HealthKit as the central store for health and fitness data on iPhone and Apple Watch, with app access controlled by user permission. HealthSync follows that model and sends data only to the backend URL and token configured inside the app.
Reference: Apple HealthKit developer documentation and Apple Health app privacy information.
Supported data
Selected HealthKit types, not a bulk data dump.
HealthSync is built around explicit toggles and predictable backend payloads, so a private API can ingest only the health data types the user chooses.
- Steps and activity energy
- Heart rate, resting heart rate, and HRV SDNN
- Sleep analysis
- Workouts
- Body mass and body fat percentage
- Optional dietary energy, macros, and water
Use cases
Built for private Apple Health sync workflows.
The best fit is a user-controlled backend: a local API, hosted FastAPI service, Supabase-backed endpoint, or another HTTPS service that you operate.
- Self-hosted personal health dashboards
- Private quantified-self databases
- HealthKit-to-FastAPI or Postgres ingestion
- Personal AI agents that need read-only health summaries
- Backfill and retry workflows for unreliable mobile networks
Download HealthSync from the App Store.
Install HealthSync on your iPhone to sync selected Apple Health data with your own private API endpoint.
View on the App StoreAlternatives
Compare Apple Health sync options.
If you are comparing HealthSync with Health Auto Export, Health Sync, or one-off HealthKit export scripts, use the comparison page to decide whether you need a private API sync workflow or a simpler export tool.