Yes, you are correct. This is a macOS Photos thing that I cannot suppress. The app displays a single save dialog when you use batch processing but not during normal editing. A few customers have also expressed a desire for a way to save the edits without getting the dialog. There is a fair amount of work to do this properly – by adding a commit menu item + alert on exit + alert on launch if the app crashed. I’m concerned that a significant number of customers will not understand this flow and think the app is broken (since edits will not commit to the Photo library and nothing will upload to iCloud until the commit operation occurs). It’s an even bigger problem on iOS because apps don’t quit on iOS – they just get terminated by the OS, so there isn’t a good place to alert or encourage people to commit the edits.