[zimmund]

> As long as an app is easy to use, people prefer a single look

No, people are used to an UI language, which in the case of iOS is quite consistent across applications. You expect certain things to work (e.g. flicking in from the left edge means "go back"). There are platform-specific patterns and I'd rather have the app behave accordingly rather than being consistent with other OS' version. The real 0.1% here are probably the users of your app with active devices in both Android and iOS!

[Spivak]

This just isn't supported by data. Breaking users into two categories: users who develop a universal mental model of software, and users who develop application specific mental models. The latter group is the overwhelming majority. People don't learn iOS, they learn Spotify.

Designing with this in mind annoys the hell out of people in the former group, no doubt. Those people are likely love customizable software so they can make it the same everywhere. It's super common in Linux setups.