“What about multi-row or vertical panoramas? I probably do more of these than any flavor of single-row.”
For vertical, do what I’ve explained below: just rotate the iPhone sideways. It’ll shoot vertical panos happily.
For multi-row, use a third-party app. As I’ve explained below, for this, I recommend AutoStitch Panorama or, if you don’t mind the lower resolution, the free Photosynth. Both have excellent sphere stitching. The latter has better exposure difference smoothing.
Here are two spheres I’ve shot with these two apps:
(Tampere, Finland, in front of the church)
And here’s a sphere with 360 Panorama (which I don’t recommend as much as the two other apps):
(Tampere, inside the church)
Started out doing photography at the age of 6 using an uncle's old 1940 kodak brownie box camera. At 15 years of age, I decided to buy my very own 1975 Praktica SLR camera. I now shoot with a Nikon D850. I do unpaid TFP and commercial paid work.