Unlimited access to all learning material for a flat monthly subscription fee. Unlimited = read all*; Unlimited+ = read and practice all*. Certification need payments per course.
Adaptive learning helps when it changes the practice based on a learner's performance. It should surface gaps, adjust difficulty, and revisit weak skills over time.
A good adaptive system responds to mistakes and success. It does not just hand out more of the same work.
If the platform keeps showing random problems without explaining progress or next steps, it is not giving you much real adaptation.