Score a 5 on AP Chemistry. Built on learning science.
Personalized study plans, adaptive practice, and a Socratic AI tutor — built on retrieval practice, spaced repetition, and the College Board's AP Chemistry course framework.
For students aiming for a 5. Parent dashboard included.
Built for STEM APs, starting with Chemistry
We're building deep — not broad — one subject at a time. Chemistry is live in beta now. The rest roll out through 2027.
What makes Klera different
Most prep tools are flashcard apps with better UI. We're built on what the research actually says works.
Retrieval-first practice
Study sessions are built around active recall — the single most-replicated finding in learning science — not passive review.
Automatic spacing
Weak topics resurface at the right intervals so they actually stick. No manual flashcard decks.
Socratic AI tutor
When you're stuck, the tutor asks leading questions instead of handing you the answer. You learn the reasoning, not just the answer key.
Parent visibility
Weekly email and live dashboard show progress by unit and science practice, with clear next steps.
Built on research, not vibes
Every design decision traces to published findings in cognitive and educational psychology.
- Retrieval practice (testing effect) — Roediger & Karpicke, 2006; Rowland meta-analysis, 2014
- Distributed practice (spacing) — Cepeda et al., 2006 — 839 assessments across 317 experiments
- Top study strategies by utility — Dunlosky et al., Psychological Science in the Public Interest, 2013
- Personalized adaptive practice — College Board / Khan Academy, 2019
Join the private beta
We're onboarding a small cohort of students prepping for the May 2027 AP Chemistry exam. Free during beta in exchange for honest feedback.