Open Settings → Apps → Calendar → Calendar Accounts → Add Account → Other → Add CalDAV Account on current iOS and iPadOS versions.
- Server:
vault.lightdrive.one - Username: your full LightDrive email address
- Password: a client password with Calendars access
Keep SSL enabled. After verification, choose the LightDrive calendars you want visible in the Calendar app and set the desired refresh behavior.
If automatic discovery fails, use the full CalDAV address https://vault.lightdrive.one/remote.php/dav/.
Device password
Create a calendar-enabled client password as described in Calendar Synchronization. A combined password can also authorize Email and Contacts, but iPhone and iPad configure IMAP, CardDAV, and CalDAV as separate connections. Select the desired calendars after adding the account.