Pi Lens - PYQs, Notes on YouTube
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Study smarter on any YouTube video with Polls, Quizzes, PYQs & Resources
Pi Lens helps you learn smarter on YouTube.
Pi Lens is your personal study assistant that adds interactive study tools on top of educational YouTube videos — without interrupting playback.
Whether you’re preparing for JEE, NEET, or Class 9-10, Pi Lens helps you learn, revise, test concepts, practice and access curated resources instantly.
🔑 Key Features
📊 Participate in Polls
Test your understanding in real-time videos with in-video polls.
📚 Get Resources on Any Study Video
Access helpful materials like:
1. Video summaries
2. Mindmap notes
3. Formula charts
4. Lecture slides
5. Curated PDFs
6. Notes by India’s top teachers
🧠 Practice PYQs
Solve Previous Year Questions for chapters covered in the video.
📝 Instant Quizzes
Quick quizzes to reinforce learning while you watch.
🎯 Why Pi Lens?
- Works best across educational YouTube videos
- Context-aware learning, right when you need it
- Minimal & distraction-free
- Designed specially for students
⚠️ Important Disclaimer
Pi Lens is an independent educational tool and is not affiliated with, endorsed by, or sponsored by YouTube.
Latest reviews
- Sagnik Chakraborty
- A VERY GOOD EXTENSION , HELPS ME TO SUMMARISE NOTES, AND PARTICIPATE IN INTERACTIVE LEARNING
- HELLO
- good
- Tuhin
- The best part is that it does not stop the video and is simple and distraction-free. I also like the (PYQs) for practice.
- chinmoys
- vey useful tool
- Shivam Jha
- The best part is that it does not stop the video and is simple and distraction-free. I also like the (PYQs) for practice.
- nitish kumar
- I found it very useful. Now, I use it to have quick test on my understanding of whole videos
- Shivansh
- NIce thing that pw do
- Harshraj Chauhan
- This extension is very useful. But poll feature not works on some videos. Also some resources are not visible. And at last Update it so that it can work on PW lectures too. If these things got correct, the app will be best of its kind.
- Kalpan Kiran
- very good and useful
- Gautam Singh
- This is best tool for learning on youtube.
- Gautamkumar Rajkumar
- Awesome extension, watching youtube videos along with getting PYQs and Quiz. Wow!