Facebook is one that comes to mind when I read this since they started with the side hamburger style, but have switched to the standard tab bar on iOS in more r

Facebook is one that comes to mind when I read this since they started with the side hamburger style, but have switched to the standard tab bar on iOS in more recent versions. They show the current version in the article, but didn't mention the transition. I'd be curious to hear from someone at Facebook if they're around today since I've heard they're pretty data-driven.