Adaptive Mastery Engine

Practice that levels up with you

Every answer updates a live mastery score and picks your next question to match it, not too easy, not too hard.

Live mastery

8.4

Target success rate

70%

How the mastery engine works

Every question in the bank carries a difficulty score from 1 to 10, right alongside your own mastery score on the same scale.

An Elo-style update nudges your mastery based on how surprising the result was. Beating a hard question moves you more than beating an easy one.

The engine always aims for a question that gives you roughly a 70% shot at success, challenging enough to grow, easy enough to keep you moving.

Math

Math

Math

English

English