Cellular biology, genetics, ecology, and evolution — master every AP Bio unit with adaptive practice, virtual lab simulations, and an AI tutor that explains complex processes visually.
DNA replication, transcription, translation, gene regulation, and heredity. The AI tutor breaks down complex molecular pathways into step-by-step visual explanations.
Practice the 13 AP Bio lab investigations digitally. Run virtual experiments on diffusion, enzyme catalysis, cell division, and more — then answer lab-based FRQs.
Population dynamics, energy flow, natural selection, and speciation. Adaptive practice ensures you spend more time on the units where you score lowest.
Write free-response answers and get instant AI feedback on your reasoning, use of evidence, and scientific vocabulary — the same criteria AP graders evaluate.
| Feature | Koydo | Traditional AP Prep |
|---|---|---|
| Monthly price | From $9/mo | $150 - $300/mo |
| Virtual labs | 13 AP lab simulations | Textbook diagrams only |
| FRQ feedback | AI-graded with reasoning check | Answer key / rubric only |
| Adaptive difficulty | Per-question adaptation | Fixed difficulty levels |
| Cross-subject prep | All AP + SAT included | Single subject only |