I just checked and they didn't mention iPad in yesterday's tweets.
Apple TV Generation 4, Samsung TV and Amazon FireTV are now available on 1080p and the video quality we deliver will depend on the content and your Internet Connection, because Crave will send you the highest quality stream your connection can support.
I also saw this
We are working on bringing support to more platforms, like Android TV and PS4. You can always keep an eye on our feed for updates.