App info is currently processing and/or the app is not yet fully available for sale on the US App Store.
So is the price an error? I don't see any advantage compared to the free mobile version of the Wofram Alpha web site.
Considering it's free online, I see no reason to shell out $50. And it requires internet to use anyway.
I'm hoping they meant 4.99 instead of 49.99. It looks lovely, but not lovely enough to pay half a days wages to obtain it.
WolframAlpha has a special iPhone version anyway... I have a bookmark for the site on my springboard. This is just silly. I might get this for a buck for the special iPhone friendly keyboard, but $50???
I just don't get it. Why do you have to pay for the app of there's a free web version of WolframAlfa?