Compatibility is specified in the AppStore for DJI Mimo Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch
In fact, DJI Mimo does not fully support the iPad!
The latest version of the DJI Mimo app is installed and based on the video presented, DJI Mimo does not support the full-screen resolution of the iPad, and you can only use the app in partially full-screen mode with the built-in iOS tools!