How to enable touch ID or Face ID in WhatsApp on iOS
WhatsApp has launched a new feature in its new update that is you can use touch ID or Face ID in WhatsApp before opening it. Now you don’t need to install any third-party app to lock your WhatsApp, now it’s inbuilt feature of WhatsApp you can secure your apps just by enabling touch ID or Face ID.
With the latest WhatsApp update, you can lock the WhatsApp app with Face ID or Touch ID by going to Settings - Account - Privacy -Screen Lock. Once you moved to the Screen Lock screen, the app shows the available authentication method - either Face ID or Touch ID - that you can enable to lock your WhatsApp. You can also choose whether you want the bio metric.authentication requirement immediately or after an interval of a minute, 15 minutes, or an hour.