Which pricing strategy did the mathematics software company Wolfram (creators of Mathematica) pioneer that revolutionized how educational software is sold?

In the world of mathematics education and products, companies use various pricing strategies to maximize profits while making their learning tools accessible to different market segments. This approach combines mathematical modeling with market psychology. Test your knowledge about how mathematics product companies implement strategic pricing in the educational technology sector.

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Tiered pricing model with free 'Wolfram Alpha' access and premium paid tiers for professional mathematicians
Subscription-based model where users pay monthly for continuous updates to mathematical algorithms
One-time purchase model with lifetime updates for all mathematical software packages
Token-based system where users purchase computational credits to solve complex equations