Whenever I am tasked with adding a rich text editor to an app, I check if Apple has since done something in UIKit to support lists. Since they revamped the text system in iOS 7, unifying large portions with how they are dealing with text on macOS, I am getting my hopes up for every new release of iOS.
macOS is using the NSTextList class to represent lists and the code below is provides proof that this class also exists on iOS. So this Radar requests – probably not for for the first time – for NSTextList to be made public. It is filed as rdar://28254852 and on Open Radar.