I know this might be a strange one but IF just now and earlier this week has started to crash on my phone.
My settings are all medium except for airplane count that is very high.
My device is a iPhone 11 Pro Max
Probably you can adjust the screen brightness to the lowest when cruising, check your “Screen downtime” in Setting, this will block your flight to continue.
Also, you can change your setting as all medium, this might work
I am using a 11 pro max for my flights as well and I have never experienced any crashes (Maybe once or twice since getting the device). Im interested to know as to what might have caused your flight to crash.
Okay, i would start with making some more space. The storage space Infinite Flight uses are quite dynamic, and we always recommend a bare minimum of 1GB available.