Which subscription-based mathematics learning platform was the first to implement adaptive learning algorithms that automatically adjusted difficulty based on individual student performance?

In the world of educational mathematics products, innovation constantly reshapes how students learn complex concepts. One fascinating area has been the evolution of subscription models for advanced mathematical learning tools. These platforms have revolutionized accessibility to quality math education, but their development history contains some surprising facts. Test your knowledge about the pioneering developments in this specialized industry!

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ALEKS (Assessment and Learning in Knowledge Spaces), launched in 1994 with McGraw-Hill
Khan Academy Pro, launched in 2006 as a premium extension of the free service
Mathway Premium, introduced in 2002 as the first mobile-compatible math solver
Wolfram Alpha Pro, released in 1998 as the first computational knowledge engine