I got a similar rejection for Touchgram in 2019 when I tried to show Messages being launched from Springboard:?
Your app preview includes content that does not sufficiently reflect the app in use. Specifically, your preview:
- Displays other apps.
- Shows footage other than the app in use.
They included a screenshot of the springboard starting frame.
I then trimmed the video further to show how it starts with the app icon in the middle of the Compact view of iMessage and they clipped that frame and left the status as rejected for the same reaons as above.
Have just further trimmed the video so it shows the iMessage extension in Compact mode, which means iMessage's transcript and the bar of app icons is visible. Will be very interesting to see if this is accepted. I have an alternate theory that the App Preview is regarded as only being for the app, even when 99% of your functionality is in the extension.