Question 1

What is CogniTwin?

Accepted Answer

CogniTwin is an AI-powered JEE preparation platform that builds a cognitive digital twin of each student. It serves adaptive questions from a bank of 13,297 verified questions, diagnoses thinking errors with an Error Fingerprint, and predicts exam scores with a backtested 5-layer prediction engine.

Question 2

How many questions does CogniTwin have?

Accepted Answer

CogniTwin has 13,297 verified JEE questions across Physics, Chemistry, and Mathematics for classes 11–12. Every question passed an automated quality gate: LaTeX render check, answer-key validation, uniqueness screening, and explanation presence.

Question 3

Is CogniTwin free?

Accepted Answer

Yes, CogniTwin is free during early access. No credit card required. Sign up with a Google account and start practicing immediately.

Question 4

What is the Error Fingerprint?

Accepted Answer

The Error Fingerprint is CogniTwin's cross-chapter diagnostic that identifies WHY a student gets questions wrong — not just which ones. It builds a unique Mistake DNA per student and serves targeted trap-replay questions to fix the underlying thinking error.

Question 5

Does CogniTwin predict my JEE score?

Accepted Answer

Yes. CogniTwin has a 5-layer prediction engine backtested on JEE Main 2025 data. It forecasts your probable score and identifies weak chapters before you sit the exam.

Question 6

Which subjects does CogniTwin cover?

Accepted Answer

CogniTwin covers the full NCERT class 11–12 JEE syllabus: Physics, Chemistry, and Mathematics across all chapters.

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