I do not have an iPhone, but I have an Android phone with a decent camera and the little three lens array. Possibly
Apple cameras are better. I have taken my best photos of coins with it because my real camera has macro limitations that I haven't figured out. But, I am
still not happy. The digital artifacts introduced by these tiny lenses are very noticeable to me and, while the photos suffice, they are not on
par with what dealers and
auction houses produce. Especially with zooming, the digital stuff makes my coins what I would call in old photography terms, grainy. I would also add artificial. Your photos look quite
good and are probably adequate for what you need them for (I wouldn't use them in a book), but I can tell they are digitally produced. People argue with me, but there is no way these tiny lenses can make truly
good pictures. There is a reason a Zeiss lease can cost $1K or more, not counting the camera it goes on. I find it somewhat dismaying that no one (except me) uses a real camera these days. When I carry it now, I get funny looks. Of course, most people take a photo with their camera, upload it to some place like Facebook or Instagram, and no one ever sees it again after a day or two. No more photo albums that families hand down. Someone dies, their photos go with them because no one goes through hard drives of deceased people's computers, etc. It is ironic because we have entered a time when future generations will have fewer photos of their ancestors than we
had in the later 20th century.
Virgil