The Amazon app store won't let you download it - says it is incompatible with the device. Too bad as it works well on my Kindle Fire. There is a free verion which you can load on the N7 but it really sucks as it is loaded with ads. I deleted it after one attempt to use it.
Yep, it's pretty darn annoying. They should update this. The free version from the Play store works, but has ads, so it's not as if there's something radically different in the hardware that would make this incompatible with the N7. All they need to do is offer a paid version of the standard Android app, but remove the ads.
Time to look for an alternative on the Play store.