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🚀 What’s New 🎯 Find your PW batch: Discover PhysicsWallah batches tailored to your exam and class right from Home ⚔️ 1v1 Battle, now smoother: Improved Battle navigation when opening from notifications and external links 🛡️ Better & safer: Security and stability improvements for a smoother experience.
Study smarter on any YouTube video with Notes, Quiz, PYQs, Mindmaps & more
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.