After ensuring macOS Mona was updated to the latest version (which renames itself Mona 6), I installed the new Mona 7, and (with Mona 6 still installed on macOS) I did the one-time purchase in Mona 7 of Mona Ultra (as I had previously purchased Mona Pro Max). I then trashed Mona 6, and emptied trash.

I downloaded Mona 7 for iOS, and on launching it showed that I had purchased Mona Ultra. I then deleted Mona 6 iOS.

Everything went smoothly. Thanks @MonaApp

#MonaApp #Mona