If the nonfree content is presented as an integral
part of the interface, such as inline with the article, that's a problem.
It is an "integral part of the interface", so mcu so, it is it's own
"thing" in the app, and not part of "in articles". See screenshot
(which I can't upload to Commons) here:
https://snag.gy/5RpbXZ.jpg It does not just
"pull up" Apple Maps, but incorporates in it to the app itself.
Jonatan