In normal WhatsApp, there is no option to lock WhatsApp directly. So first download Gb WhatsApp.
Follow these steps to lock WhatsApp
- Install Downloaded GbWhatsApp apk
- Set all things like a normal WhatsApp.
- Now click on the 3-dots icon on the GbWhatsApp home screen.
- Click on Fouad Mods.
- Now List of settings appeared.
- Click on Privacy and Security.
- Scroll down, you will see an option “WhatsApp Lock”
- Enable “WhatsApp lock”
- Now select your preferred password method pin or pattern or Fingerprint.
- Set your password and you are done
- You can also change your password anytime by tapping the “change password” option.
Now with this option, whenever you enter in WhatsApp app you have to first unlock your WhatsApp.