They have an app for iPad, but I don't find it necessary. I like browsing the standard website on my iPad. On my phone, however, the app is better than the website - easier to navigate and read. (If I am zoomed to the point that I can see the entire width of the front page, I can't read it very well.)
Yeah, my post was sarcastic, but it may have been a bit too dry to appear as such. Over a succession of releases, their iPad app went from not-too-bad, to buggy, to forehead-slappingly awful in iOS 7, at which point I cancelled my subscription.
Woosh. Yeah, missed it entirely. I think their website is great, so there's really no need for a tablet app. I think they should cut their losses on it. Focus on the site itself, and the iPhone/Android apps.