This app lets you protect your Messenger privacy through a PIN.

After installation it will ask you to set a 4 digit PIN, and will show the configuration options to lock Facebook Messenger.

Features:-

★ It's free and has no limitations.

★ Best Messenger block on market

★ Keep your messages safe

★ Protect uninstallation and settings for more security.

★ Capture intruders when wrong PIN entered. Have Fun :)

★ Customize autolock time

★ It is ultra lightweight. Uses low resources and space.

★ Minimum special permissions required.

★ Design attractive and simple user interface.