The Arena
Ranked head-to-head against a candidate near your rating. The clock is the server’s, so nobody wins on a faster connection.
Exam prep that fights back
Beat somebody sitting the same exam as you.
Ten questions, one shared clock, a rating that moves. Plus a daily question, spaced repetition that looks like a game, and a readiness estimate that shows you how sure it is.
The daily question is free, for good. No card until you want a mock exam.
Six ways to revise
Crossword, matching, cloze, Leitner boxes, speed drills and explain-back. All of them playable on a keyboard alone.
Honest readiness
Mastery per blueprint domain, always shown with its confidence interval. A narrow band means we know; a wide one means you should keep going.
$25 a month
Thirty days free first. Annual and family plans cost less per month. Cancel in one click from your account page — the same number of clicks it took to start.
See the plans