Powered by FSRS Spaced Repetition

Pass your tech certifications. First try.

FSRS-powered spaced repetition for tech certification exams. CertLabs builds the exact knowledge that passes exams — then schedules your review so it stays there.

297 exam questions148 info cardsFSRS algorithm3-month access

Available Certifications

More certifications launching soon.

CCA-F$34.99
Anthropic Claude Certified Associate

Foundations

  • 297 exam questions
  • 148 info cards
  • 90-day access
  • FSRS adaptive scheduling

More certs coming

AWS, Azure, GCP, CompTIA, and more

Built on the science of memory

CertLabs is not a question bank. It is a retention engine.

Science-backed retention

FSRS (Free Spaced Repetition Scheduler) schedules every question at the exact moment your memory is about to fade. You review less, retain more.

Start at your level

An adaptive placement test identifies what you already know in the first five minutes. No wasted time drilling material you've mastered.

Learn, don't just quiz

148 structured info cards explain concepts behind the questions. You build durable understanding, not just pattern-matching.

Know when you're ready

Your CertLabs Score is a real-time prediction of exam readiness. Study until the number says you're done.

Powered by RetenzAI

The same algorithm used by millions of language learners

FSRS (Free Spaced Repetition Scheduler) is the state-of-the-art open-source algorithm that outperforms legacy SM-2 on every retention benchmark. RetenzAI applies it to tech certification content so your study time converts directly into exam performance.