The "Daddy" A.I. was a godsend for princesses with daddy issues. You just installed it on your phone, and it gave you all the approval and attention you'd never had from your real father.
In the first phase, you needed to train the AI, or "seek its approval". You would lie on your bed, naked, your phone with the app installed in one hand, and compatible headphones on your head. It would ask you questions - your name, your address, your bank account details - and you would answer, and he would tell you you were a very good princess, and you would feel wonderful. Sometimes he spoke nonsense words - a hissing very like white noise - and you would listen to that too, and know that it was your Daddy just doing some tidying up in your mind. You always felt better afterwards.
In phase two, you needed to build up a history with Daddy. The app had not really been there in your childhood, so you needed to give Daddy some moments to remember you by. You had a list of photos to take and upload to Daddy, that you would work through - a photo of you naked like a baby, a photo of you in a diaper, a photo of you in a princess dress, a photo of you in the bath, swimming naked, in a schoolgirl dress. If Daddy didn't like the pictures he would tell you to take them again with corrections - "legs spread wider, princess" - "push your tits out, princess" - "smile more, princess" - and you would obey.