Could it be? Is Amazon offering another useful app that I actually want to own for the 2nd day in a row? That's pretty much a first so far, with the Shazam Encore/SwiftKey tag team being a close second. What makes today's deal especially valuable is that there is no free version of Wolfram Alpha at all, so combined with 4.7 stars and over 1,800 reviews in the official Market, getting today's free app right away is pretty much a no-brainer.
When Wolfram Alpha was introduced back in 2009, it sent shockwaves through the Internet and the scientific community due to its incredible artificial intelligence and instant usefulness in myriads of both highly scientific and day-to-day computations.



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