Draw or write in Notes on iPhone - Apple Support

Illustrating Your Thoughts in iOS Notes - The New York Times

Write This Down: 17 Things You Didn't Realize Apple's Notes App Could Do

Make Perfect Shapes in Notes, Drawings & Annotations with iOS 14's New Shape Recognition Tool « iOS & iPhone :: Gadget Hacks

Notes app tips to use its full potential - 9to5Mac

Add items to a list in Reminders on iPhone - Apple Support

Dictate text on iPhone - Apple Support

Use Notes on your iPhone, iPad, and iPod touch - Apple Support

Popular iOS notes app Bear adds sketching (and stickers)

Draw or write in Notes on iPhone - Apple Support

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

Draw in apps with Markup on iPod touch - Apple Support