In this video, you'll learn step-by-step how to lock any app on your mobile. Whether your phone is Samsung, Xiaomi, Realme, Vivo, Oppo, or OnePlus—all brands offer different app lock options. Here, you'll find a complete guide: 1. How to use your phone's built-in App Lock 2. Setting up an app lock with a password, PIN, pattern, or fingerprint 3. How to secure Gallery, WhatsApp, Instagram, Photos, and Banking apps 4. Safely use a third-party app lock if your phone doesn't have an app lock option 5. The correct way to remove or reset the lock If you want to protect your phone's privacy, this video provides the complete solution. Hello, my name is Sandip Sandola. You can follow me elsewhere too. Follow me on: Instagram - / techdroidhindi Personal Instagram - / sandipsandola DISCLAIMER: This channel only provides educational videos or technology tips and tutorials. People can learn and share educational videos with everyone. ©Techdroidhindi