Thanks for the information. I already have code to prompt the user for folder access and to save the bookmark. Yes, I could ask them instead for a save dialog for just the XMP file, but as you point out, that's not better from an experience standpoint. This API has been on Mac since 10.8 and the underlying OS / file system are similar between Mac and iOS, AND the security / privacy benefits of having this API on iOS are clear. Can you provide some insight as to why the API is hard to implement or (perhaps) not important to implement? At least when customers ask me why I have to do this, I can give them a proper answer.