Pi Lens-Notes, PYQs on YouTube
Pi Lens-Notes, PYQs on YouTube has 485,332 installs (+6.6% in 30 days), #3,941 of 323,887 in Education.
Unusual numbers: 485,332 installs and no ratings shown on the US store - too few to cross-check an install count this size. It is left out of StoreTally's risers, breakouts and new listings.
Also in the last two weeksv1.5.0 on 1 Nov
Description
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Turn any educational YouTube video into a complete study session. Pi Lens sits right next to your lecture and gives you everything you need to actually learn from it — not just watch it.
Whether you're preparing for Class 9-12 Boards, IIT-JEE, NEET, CUET, UPSC, State Boards, or MHT-CET, Pi Lens helps you learn, revise, test yourself, practice, and access curated Notes from PhysicsWallah's (PW) own teachers.
What Pi Lens gives you on every study video:
📚 Notes on any youtube video
Mindmaps, formula sheets, short notes, lecture slides, and curated PDFs - all mapped to the chapters being taught in the Youtube video.
📋 Video Summary
A structured summary notes of the YouTube lecture, auto-generated from the video - so you can review in 2 minutes what took 90 minutes to watch.
📝 Previous Year Questions (PYQs)
Chapter-matched exact PYQs from the last 5 years' exam data, ready for you to practice anytime.
⚡ Instant Quiz
Test yourself on exactly what was taught in the video - questions built from the video’s content.
📊 Live Polls
Participate in real-time polls during PhysicsWallah’s live classes. Stay active, stay ahead
What's More for You:
📁 PDF Bank
Highly curated 1000+ PW's faculty Notes and PDFs for JEE, NEET, CUET, UPSC and Board Exam preparation - all in one place.
🧪 Concept Lab
Turn your own handwritten notes or your favourite YouTube video into interactive simulations, mind maps & flashcards - a one-stop revision tool for tough concepts.
⚔️ 1v1 Battle
Challenge a friend and beat them on your favourite chapter - a fun way to make studies competitive.
4,50,000+ students use Pi Lens on Android and Chrome to study smarter on YouTube.
🎯 Why students choose Pi Lens:
1. Made specifically for students who learn on Youtube
2. Zero friction: No searching for study material, PDFs or Notes, find everything in one place
3. Minimal & distraction-free
4. Built for the students of India by PhysicsWallah, using the power of AI
⚠️ Important Disclaimer
Pi Lens App is an independent educational tool and is not affiliated with or endorsed by YouTube.
Is Pi Lens-Notes, PYQs on YouTube safe?
StoreTally doesn't rate safety. Here's what the store and our tracking show:
- Listed on Google Play.
- Made by Physicswallah; no developer website listed. Details →
- On Google Play since 2026-01-20. Last updated 2026-11-01.
- 485,332 installs and no ratings shown on the US store - too few to cross-check an install count this size.
Reviews The reviews Google Play shows first (its most relevant), from the US store, in any language.
Growth change in installs
| Per | Growth | Growth % | Actual change | Measured over |
|---|---|---|---|---|
| day | Not enough history yet | |||
| week | +6,401 | +1.4% | +14,448 | 15.8 days |
| month | +30,035 | +6.6% | +31,834 | 31.8 days |
| year | Not enough history yet | |||
How these figures are measured
Change in installs, scaled to each window from the real gap between crawls. A window needs a full period of history before it reports anything.
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