To connect your iCloud calendar to FreeBusy:
- Go to sign up.
Or link new calendar if you're already signed in. - Provide the email address associated with your iCloud calendar.
- FreeBusy will try to detect your calendar provider.
You can also pick iCloud manually. - Turn on two-factor verification for your Apple ID and create an app-specific password for FreeBusy.
Please record this password somewhere (preferable an encrypted password manager) because you'll need it every time you sign into FreeBusy with your iCloud calendar. - Provide the app-specific password from Step 4.
- Click Sign in.