The information search engine WolframAlpha has released an iPhone app called
WolframAlpha, which costs € 39.99 if you offer it.
Under http://www.wolframalpha.com/iphone also an iPhone optimized version of the website is available.
I have to compare some results of the iPhone app screenshots with the free iPhone-optimized page and found that some, particularly the graphics, better (and probably faster) will be issued. In addition, the app provides the possibility to insert special characters, otherwise on the iPhone does not or can be found only by a roundabout route.
Who pays the price
At first glance, then the purchase of WolframAlpha iPhone App only for people who Every day, mobile Related information from the page WolframAlpha want. Who WolframAlpha only sporadic use, can draw a clear conscience on the iPhone optimized, free version.