After 26 days we finally got an answer today from the app appeals board repeating the initial rejection from September 19: "Specifically, the app functionality is insufficient to accurately provide users with information of the current mood of their pet."
THIS IS NOT TRUE:
We have proven that recognizing emotions from faces and body posture works in peer-reviewed academic research since 5 years for dogs, horses, and other animals:
https://www.mdpi.com/1999-5903/14/4/97
https://www.mdpi.com/1999-5903/13/10/250