The author suggests Google’s “Material” but in my experience, Google has it wrong compared to Apple’s Human Interface Guidelines. For example, Google hides stuff behind icons with no text. Unless you already know the UI, you are hunting around for what you need (remember screensharing on Google Hangouts?) On Apple’s apps, icons always come with a text label and rarely are things hidden behind unnamed icons. Google also seems to be changing UI constantly. Material Design is terrible — it’s the very essence of the problems being mentioned in this article. Apple’s Human Interface Guidelines also address accessibility far better than Material design. Maybe it’s me, but it does feel like there are camps when it comes to UI: the Material Design side and those that care about usability for people that don’t spend their time in the Googleverse.