John Gruber, on the iOS App Store story about Procreate Pocket:

The whole story is only seven paragraphs long, and one of them is devoted to explaining how to invoke Undo and Redo. This is — inadvertently on the part of the App Store editorial team — a scathing indictment of the state of iOS’s user interface standards.

Not sure scathing indictment is quite right, but I do get the point. Part of what makes a Mac a Mac is that dogged consistency that has held up over many years of evolution. Command-Q to quit an app, Command-P to print, Command-C and Command-V to copy and paste and, in this instance, Command-Z to undo.

John’s point carries much further than undo. Look at the way iOS gestures have evolved from generation to generation. As we move from a home button to none, from typing a passcode, to Touch ID, and on to Face ID, the bedrock gestures have changed as well. Move from one generation of device to another and the basic interactions have changed.

Part of this is, Apple is still tinkering with some foundational iOS underpinnings. But part of this is also a testament to the genius of the designers who crafted that early Mac interface. Such insight, such vision.