01
Expert-curated flashcard decks mapped to every official exam objective. No deck-building, no guesswork — just pick and go.
02
FSRS spaced repetition schedules each card at the precise moment you're about to forget. Hard cards return sooner. Mastered cards fade away.
03
Track your retention across every exam domain. When the heatmap is green across all objectives, you're ready to sit the exam.
Try it yourself
Flip each card, rate your confidence. After the last card we'll show your predicted memory retention.
The problem
You spend hours reading docs and watching videos, but by exam day most of it is gone. The forgetting curve is brutal — up to 80% lost within 48 hours. Certification exams don't reward effort. They reward recall.
Ebbinghaus Forgetting Curve — Memory over 48 hours
The fix
CertStax pairs expert-curated flashcard decks with FSRS spaced repetition — the same scheduling science used by medical students and language learners worldwide. No deck-building. No guesswork. Just pick your cert and study.
We're finishing up our expert-curated flashcard decks. Join the waitlist and we'll let you know the moment it's ready.
Free to join · No spam · We'll only email you when it's live
Like WaniKani for cloud and cybersecurity certs — structured, progressive, and impossible to outgrow.
Every card maps to real exam objectives. Blind spots glow amber.
Cards arrive at the precise moment you're about to forget. Hard cards return sooner. Mastered cards fade away.
Watch every card progress from New → Learning → Review → Mastered. When the pipeline is green, you're exam-ready.
Every deck is crafted by our 21-stage AI pipeline, mapped to official exam guides.