You don't need a separate download to lock your app. Both Android and iPhone now have native biometric locks.
Here is everything you need to know about locking your WhatsApp, from official settings to the best tools for extra protection. whatsapp lock download
Choose your timing: "Immediately," "After 1 minute," or "After 30 minutes". How to Enable on iPhone How to use app lock | WhatsApp Help Center You don't need a separate download to lock your app
Securing your WhatsApp is no longer about finding a "whatsapp lock download" from a third-party site. In fact, WhatsApp has built-in features that are more secure and easier to use than external apps. Choose your timing: "Immediately," "After 1 minute," or
Open WhatsApp and tap the (menu) in the top right. Go to Settings > Privacy . Scroll to the bottom and select App lock . Toggle on Unlock with biometric (fingerprint or face).