Wolfram Alpha Competitors
Wolfram Alpha is the just of it's kind, when it involves recognizing chain reactions, mathematical solutions, contrasting things etc
The internet search engine itself is not one-of-a-kind and also a lot of the information you can get else where. Yet the manner in which it attempts to recognize your declaration and also team pertinent details with charts etc just revealing 1 outcome is nothing I've seen or read about anywhere else.
Probably the largest rival would certainly be Google Squared, yet it does not do calculations or graphing or things like that. It simply loads tables with details (like U.S. head of states and also their day of birth, time in workplace, vice head of state, etc)
Edit : Google Squared was shut down in September 2011