Question about localization of iOS app.

I have been answered that the app launch image and icon cannot be localized for iOS localization.

Here’s a link to that thread, just for the record.

I would like to know the reason for that.

Apple does not, in general, publish reasons for its design decisions. I did some digging and found a little info on this subject. This page in the HIG offers some rationale:

Prefer including text only when it’s an essential part of your experience or brand. Text in icons is often too small to read easily, can make an icon appear cluttered, and doesn’t support accessibility or localization.

In contrast, this page just confirms that the launch screens aren’t localised:

Avoid including text on your launch screen. Because the content in a launch screen doesn't change, any text you display won’t be localized.

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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"