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Brain Grain AI Tutor
A kind tutor that teaches slowly. One question at a time works best.
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A warm Samacheer Kalvi AI tutor for Tamil Nadu students. Ask Science doubts, Maths doubts, homework questions, and Class 10 public exam revision doubts with Tamil-friendly English explanations.
Live count from successful AI answers returned today.
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First-time visitors can try study doubts before deciding to upgrade.
Brain Grain turns Class 10 Science revision into visible progress: answer questions, earn XP, keep a streak, unlock badges, and climb a Tamil Nadu study leaderboard.
Free keeps daily practice open. Plus is for students who want full paper access, deeper analysis, and more AI help.
| Feature | Free | Plus ₹149/month |
|---|---|---|
| One past paper per day | Yes | Yes |
| All papers access | No | 2020-2026 |
| Hints per session | 3 | 3 |
| AI doubt help | 5/day | Fair-use unlimited |
| Leaderboard visibility | Top 100 | Full access |
| Shareable score cards | Basic | Premium with rank |
| Weak chapter analysis | No | Yes |
| All grades | No | 6-10 |
Quick examples of the answer style: simple, exam-focused, and easy to follow.
Explain Ohm's law with an example.
Ohm's law says current increases when voltage increases, if resistance stays the same. Formula: V = IR. If R is 2 ohm and I is 3 A, voltage is 6 V.
Solve 2x + 5 = 17 step by step.
Subtract 5 from both sides: 2x = 12. Divide by 2: x = 6. Check: 2(6) + 5 = 17, so the answer is correct.
Explain photosynthesis in Tamil-friendly English.
Photosynthesis means plants make food by using sunlight, water, and carbon dioxide. Tamil meaning: plants sunlight-a use panni food prepare pannum process.
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