Imagine your iPhone adapting to each app you open — text that's always the right size, buttons you can spot at a glance, and a steady cursor that never blinks — all without touching your system-wide settings. It sounds like magic, but it's all thanks to a tucked-away feature. With Per-App Settings (introduced in iOS 15), you avoid the one-size-fits-all trap: Mail can have larger text while Instagram can stay at standard size. You can get cross-fading transitions in the Notes app while pre...
