You don’t get a TS lens because you’re trying to make a discardable commodity image on a discardable commodity phone… yes, 90% of the images humanity takes aren’t worth viewing, much less keeping, but that doesn’t mean iPhones are “good enough” for images that are important, and in the coming decades we’ll really regret all of our visual legacy having been recorded with lossy compression through crap lenses on ludicrously small chips.
(context: high end tilt-shift lenses are used for architecture photos to make buildings and complexes look all square everywhere and not tapered skywards due to perspective effect. The stakes are higher and spending more effort than snapping and editing on an iPhone is justified)