Which apps take advantage of the 12.9-inch iPad Pro screen?

[muchospanish]

I was at the Apple Store today and started to really like the 12.9-inch iPad Pro. Which apps take advantage of the bigger screen? I saw that Wordpress admin has certain features I've only seen on a computer, never on my iPad Air 2, but that's all in Safari. Are there apps that are more full-featured?

 

[Honey Beagle]

I wish there was a way to make the applications that do not take advantage fill the screen. Like when a iPhone application does not fill the screen t y ere I scan option to make the application look bigger.