Connect Apple iCloud

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Apple doesn’t offer a sign-in window for calendar apps like Google or Microsoft do — the connection runs over CalDAV with an app-specific password. It sounds more technical than it is: created once, everything runs automatically. Sync picks up changes every 5 minutes.

The most common pitfall

Your regular Apple password won’t work here — Apple requires a dedicated app-specific password for third-party apps. Creating one takes two minutes:

1. Create an app-specific password

Kalender Sync shows the steps right in the connect dialog.

1. Open appleid.apple.com and sign in.
2. Go to “Sign-In and Security” → “App-Specific Passwords”.
3. Click ”+” and create a password, e.g. named “kalender-sync”.
4. Copy the generated password (format: xxxx-xxxx-xxxx-xxxx).

Prerequisite: two-factor authentication is enabled on your Apple account (true for almost all accounts — without it, Apple doesn’t offer app-specific passwords).

2. Connect in Kalender Sync

Apple ID email + app-specific password, then “Test & Connect”.

1. In the dashboard: “Connect calendar” → “Apple iCloud” → “Continue” to the form.
2. Enter the email address of your Apple ID (e.g. name@icloud.com).
3. Paste the app-specific password and click “Test & Connect” — Kalender Sync verifies the connection immediately.

If “sign-in failed” appears

• Typo in the password? Best to paste it fresh instead of typing.
• Did you really use the app-specific password, not the regular one?
• Password revoked at Apple in the meantime? Simply create a new one (step 1).

Ending access

In Kalender Sync: remove the calendars. You can also delete the app-specific password at appleid.apple.com any time — access ends immediately.