Sync to Nextcloud / WebDAV
Upload your Apple Health exports to your own Nextcloud server or any WebDAV-compatible storage. Your data never touches a third-party cloud — it goes directly to your infrastructure.
Compatible Servers
- Nextcloud
- ownCloud
- Synology DSM (WebDAV enabled)
- Any server running Caddy or nginx with WebDAV
- Any standard WebDAV endpoint
Prerequisites
- Health Data Export app (iPhone)
- A Nextcloud/WebDAV server with a folder already created
- Your Nextcloud username and an app password (not your login password)
Setup
- Open the app → Settings → Sync
- Tap the provider selector and choose Nextcloud / WebDAV
- Enter your folder URL — for Nextcloud this looks like
https://cloud.example.com/remote.php/dav/files/username/HealthData/ - Enter your username
- Generate an app password in Nextcloud: Settings → Security → App passwords → Create new app password
- Paste the app password — stored securely in the iOS Keychain
- Choose file naming mode: Timestamped or Stable
- Tap Test Connection, then enable Auto-Sync
Finding Your WebDAV URL
For Nextcloud, the WebDAV base URL follows this pattern. Replace the placeholders with your own host, username, and target folder name:
https://<your-nextcloud-host>/remote.php/dav/files/<username>/<folder>/Note: The trailing slash is required.
File Naming Modes
| Mode | Behaviour | Best for |
|---|---|---|
| Timestamped | New file each sync, e.g. health-export-2026-04-13.json |
Building a historical archive |
| Stable | Overwrites same file each sync, e.g. health-export.json |
n8n automations, always-fresh single file |
Troubleshooting
- "Upload failed: 401" — Check username and app password. Do not use your login password.
- "Invalid URL" — Make sure the URL ends with a
/and points to a folder, not a file. - "Upload failed: 404" — The folder doesn't exist on the server yet. Create it in Nextcloud first.
- HTTPS required — iOS requires HTTPS for WebDAV. Self-signed certs may be rejected; use Let's Encrypt.
See also: Nextcloud setup guide and Dropbox sync.