Place the App Store badge first in the lineup of badges

Exactly what I'd expect. There's also:

Don’t refer to Apple devices generically as "smartphones" or "tablets."

Don’t list Apple products that are not compatible with your app.

Don’t display a blank screen on an Apple product, or on a television screen when showcasing Apple TV.

The status bar [...] should show a full network icon [...], a full Wi-Fi icon, and a full battery icon.

And:

Don’t feature the Apple logo to take advantage of the promotional value of the Apple brand.

But:

Don’t obscure or cover the [Apple] logo.

It's really treading a fine line between the two, figuring out what exactly is allowed.

Some of the guidelines are even more neurotic:

Always typeset [iPod] touch with a lowercase t.

For [iPhone XR/XS] headlines and copy, use an uppercase X, small cap S, and small cap R

Don’t use the word "watch" or "time" as a pun or verb in your marketing materials.

And the final gem:

    Don’t break Apple
    Watch over two lines.

Whenever one or more badges for other app platforms appear in the layout, use the preferred black badge. Place the App Store badge first in the lineup of badges.