I have an Exchange account at work that contains my calendar. I'd like to sync that Exchange calendar with my iCloud Calendar on my iPhone so that I can see and create appointments on my home computer (that cannot see the Exchange server because it's behind the work firewall.)
Does anyone know of an app or technique that will sync two calendars within an iPhone?
(There are many answers about syncing between iPhones, but that is not the question here.)
(There are also answers from seven years ago, but those really aren't duplicates of this question because they've aged out.)