&quot;<i>So often, the user has to try touching everything on the screen just to find out what are actually touchable objects.</i>&quot;<p>This happened to me many times on iOS and I&#x27;m a (still young) software developer, being familiar with most user interfaces that happened since Windows 3.11 until now. To be honest, biggest culprits are third party apps, but they follow official guidelines and Apple&#x27;s example. This was my biggest problem with Windows Phone too, with the whole transition to flat interfaces that don&#x27;t give clues on what can be tapped. If this can happen to us, then other people don&#x27;t stand a chance.<p>But you know what&#x27;s worse? Every couple of years we change the UI just for the sake of change.