Which mathematical software company revolutionized their market by introducing a subscription-based model that dramatically lowered entry costs while offering tiered access to computational tools?

The mathematics industry has seen growing commercialization of algorithms and mathematical tools. As math-based products have entered mainstream markets, companies have created distinctive brand identities and marketing strategies. This poll tests your knowledge of how mathematical algorithms have been branded and marketed in the commercial space. Do you recognize which famous mathematical product's marketing strategy broke industry norms?

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Wolfram Alpha Pro (2012)
MATLAB's Flexible Licensing Program (2016)
Mathematica Cloud (2014)
SPSS Statistics Subscription (2015)