This started off as a school project at the University of British Columbia and is now available for purchase on major platforms. I don't typically use the panorama feature on my camera phone, but this little tool is good enough that it may finally make me do it.
I've always preferred to use this tool over the native iOS panoramic camera mode. The quality is so much higher since it uses individual hi-res photos. It does, however, sometimes suffer from banding.
The Design of Influence: How to Craft Products that Move People
Osaurus