Buried in Accessibility settings, Apple’s Assistive Access mode redraws the iPhone as a stripped-down, one-thing-at-a-time interface — huge buttons, a handful of chosen apps, no infinite scroll — turning any iPhone into a “dumb phone” for a distraction-free day or a kid’s first handset, with nothing to buy or install. Six Colors flagged it as one of those genuinely useful features hiding in plain sight. It’s fully reversible, so you can dip in and back out.