The site would always work on iOS, but it was never great. The new app is absolutely gorgeous and is incredibly functional. It has a few tabs that reveal parts of Devour you probably never even knew existed before. There are "leftover" videos you can watch that didn't quite make it to the home screen of Devour. There is now a "Watch Later" function you can enable upon signing into Devour. There's even a tab that lets you watch a random video.
This new Devour iOS app is a great example of when a designated app is better than just viewing a mobile version of the website. Kind of like YouTube, actually. It makes Devour even more enjoyable on both your iPhone and iPad.