Apple Health permissions are not ready
Open the Apple Health permission prompt again from HealthSync, or review permissions in iPhone Settings. HealthSync cannot read categories you have not granted.
HealthSyncSupport
HealthSync support.
Get help with Apple Health permissions, backend setup, hosted storage, manual sync, backfill, and private agent credentials.
- Scope
- iOS app setup and sync issues
- Platform
- iPhone with Apple Health
- Privacy
- No Apple Health data by email unless you choose to share it
Quick start
Start with the working sync path.
HealthSync syncs selected Apple Health data after HealthKit permission is granted and a destination is configured.
- Open HealthSync and connect Apple Health.
- Grant read permission for the health categories you want to sync.
- Choose storage mode: your own backend or hosted HealthSync storage.
- Configure the backend URL and token, then test the connection.
- Run Sync last 24 hours or Backfill date range.
Troubleshooting
Common fixes.
Backend connection fails
Confirm the URL is reachable from the iPhone, uses HTTPS in production, and matches the token saved in HealthSync. For same-Wi-Fi local testing, allow iOS Local Network access if prompted.
No samples are found
Check that the selected data types contain Apple Health samples in the chosen date range. Simulators are useful for UI testing but do not represent real Apple Health data availability.
Uploads keep retrying
Failed uploads stay queued locally for retry. Open Sync Logs, confirm the backend is healthy, then run a manual sync or backfill again.
Hosted storage or agent credentials need refresh
Use the hosted storage controls in Settings to refresh the read-only agent token or reset hosted storage when the saved token is no longer valid.
Contact
Send support requests by email.
Email contact@megabyte0x.xyz with the iPhone model, iOS version, app version, storage mode, and the sync log message you see.
Do not send raw Apple Health exports, backend tokens, ingest tokens, or agent tokens. If a token may have been exposed, rotate or refresh it before continuing.
HealthSync is a data sync utility, not a medical device. It does not provide medical diagnosis, treatment advice, or emergency support.
Review the Apple Health sync guide.
The guide explains how HealthSync reads HealthKit data on-device and uploads selected JSON batches to a backend you configure.
Open sync guide