With this tool, WhatsApp users can block access to messenger conversations via password or fingerprint.
Functions:
The app allows you to set a four-digit password or fingerprint to block access to WhatsApp conversations or, if you prefer, hide the most important conversations from the messenger.
How to use:
Install and open the Chat Lock for WhatsApp app on your Android, then enter a four-digit password (repeat the process to confirm the password), accept the required permissions, and click the + sign to add the conversations you want to block. If your device supports it, you can also configure the lock through fingerprint.
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