Use display and text size preferences on your iPhone, iPad, and iPod touch - Apple Support (PH)

Find settings on iPod touch - Apple Support (SG)

Change your iPhone wallpaper - Apple Support (PH)

Set up your iPhone or iPad - Apple Support

Get apps in the App Store on iPod touch - Apple Support (SG)

How to Change Text Size & Other Display Settings on iPhone & iPad

Send and reply to messages on iPhone - Apple Support

Read stories in News on iPod touch - Apple Support (PH)

Hide ads and distractions in Safari on iPod touch - Apple Support (MY)

Draw or write in Notes on iPod touch - Apple Support (MY)

Find settings on iPhone - Apple Support (CA)

Set Custom Text Sizes on a Per-App Basis in iOS 15 - F11Photo

Use AssistiveTouch on iPhone - Apple Support (PH)

iPad User Guide - Apple Support (SG)

iOS - Wikipedia