Not just the answer — the concept behind it. Dual AI verification, personalised explanations, concept graphs, and spaced repetition. Built for serious JEE and NEET aspirants.
Free — 5 questions/day. No credit card needed.
Concept tested: Kinematic equation v² = u² + 2as — applying the right boundary condition
At maximum height, v = 0. This is the key insight JEE tests.
Substitute: 0 = (20)² + 2(−10)h → h = 20 m
371+
Verified formulas injected per answer
5
AI providers — always-on fallback
4 subjects
Physics, Chemistry, Maths, Biology
150+
Concept dependency edges mapped
No signup friction, no waiting.
Paste any JEE/NEET question or upload a photo. OCR extracts the text, auto-detects the exam and subject, and sends it through.
JEEnius tells you what skill JEE is testing, walks through every step, flags the most common mistake, and has a second AI independently verify the answer before you see it.
A follow-up question checks you actually got it. Wrong? That concept gets scheduled for spaced review. Your mastery map and concept graph update automatically.
Every other tool gives you an answer. JEEnius gives you understanding.
Before the solution, JEEnius tells you exactly which concept JEE or NEET is testing — the skill, not just the calculation. That's the difference between remembering and understanding.
After the explanation is generated, a second independent AI verifies the maths and logic. If they disagree, a stronger model resolves it and you see the corrected answer. No other JEE tool does this.
Every question you ask updates your weak-concept profile. The next explanation is personalised to your gaps — the AI is told what you're struggling with before it answers.
150+ concept edges mapped across all subjects. See which prerequisite concepts you're missing before you try a chapter. Study in the right order, not just harder.
Wrong on a follow-up? JEEnius schedules that concept for review in 1, 3, 7, 14 days using the SM-2 algorithm. Due reviews surface on your progress page — no manual flashcards needed.
Paragraph questions, matrix-match, multi-correct MCQ, assertion-reason — each gets a format-specific prompt, not a generic one. Multi-step reasoning mode activates for Hard questions.
Every question is matched against past JEE/NEET questions using vector search. See how NTA has framed this concept before — pattern recognition that builds exam instinct.
Every question updates your per-chapter score across all four subjects. A colour-coded heatmap shows exactly which chapters need work — not vague, not generic.
Groq, Gemini, OpenRouter, Mistral, NVIDIA. If any provider goes down or rate-limits, the next one takes over instantly. You never hit a dead end mid-session.
A feature-by-feature breakdown of what each tool actually offers.
| Feature | JJEEnius | Doubtnut | PhysicsWallah |
|---|---|---|---|
| Step-by-step explanation | |||
| Image / photo upload | |||
| Free tier available | |||
| Identifies the concept JEE is testing | |||
| Answer independently verified by a second AI | |||
| Explanations personalised to your weak areas | |||
| Follow-up question to confirm understanding | |||
| Concept dependency graph (what to study first) | |||
| Spaced repetition on wrong follow-up answers | |||
| Chapter mastery heatmap per subject | |||
| Handles matrix-match, paragraph, multi-correct | |||
| Alternative approaches for hard questions | |||
| Links to similar past PYQs (vector search) | |||
| Always online — multi-provider AI fallback |
* Based on publicly available features as of 2025. Partial (—) means limited or manual version exists.
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