> It's advertised as being private because it uses your own iCloud Drive as the database. That doesn’t mean it uses iCloud syncing. It could use its own or a t

> It's advertised as being private because it uses your own iCloud Drive as the database. That doesn’t mean it uses iCloud syncing. It could use its own or a third party method to sync data with a file on icloud. > How would you implement it? If I were to implement something like that, I would read Apple’s documentation (https://developer.apple.com/icloud/cloudkit/ https://developer.apple.com/icloud/cloudkit/), Google for blog posts and try to find Apple or third party sample code (e.g. https://developer.apple.com/documentation/uikit/documents_data_and_pasteboard/synchronizing_documents_in_the_icloud_environment https://developer.apple.com/documentation/uikit/documents_da...), and think hard about testing. (I wouldn’t know how much of these were done for this project)