What is the difference between -nativeScale and -scale on UIScreen in iOS

Found the answer on stackoverflow.com and installed iPhone 6 Plus simulator:

but my app refused to start on it and displayed the following error:

app was built for iOS 13.0 which is newer than this simulator 12.4

Found the table with the scales:

and installed iPhone 7 Plus:

And my app displayed:

bounds: (0,0 414x736) , native bounds: (0,0 1242x2208) , scale: 3 , native scale: 3

On iPhone 8 Plus:

bounds: (0,0 414x736) , native bounds: (0,0 1242x2208) , scale: 3 , native scale: 3

Probably the simulator behaves a bit differently than a real device.

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