For connecting the Apple and OutLook Canlader on your booking, go to Settings -> Integrations and enable the Apple and Outlook calendar.
When customers book a meeting, they will see the Outlook and Apple calendar icon on the front end.
Apple Calendar -> When you click on the Apple Calendar icon, it will download an invite.ics file. Now click on the file for connecting with Apple Calendar.
Outlook Calendar -> When you click on the Outlook Calendar icon, it will connect directly if your Microsoft account is logged in.