Lock for Facebook: Keep safe

Lightweight, practical, effective and fun!
This app lets you protect your Facebook privacy through a PIN.
After installation it will ask you to set a 4 digit PIN, and will show the configuration options to block Facebook
You can customize auto-lock time, so you don't need to enter the PIN every time you change task on your device.
If you enter a wrong pin and your phone has front camera, it will take a picture of the intruder and saved in the photo gallery.
Have fun in detecting the intruder! (Only devices with front camera)
Features
★ It's free and has no limitations.
★ Keep your messages safe
★ Capture intruders when wrong PIN entered. Have Fun :)
★ Customize autolock time
★ Don't make you crazy with strange advertising.
★ It is ultra lightweight. Uses low resources and space.
★ Minimun special permissions required
★ Design attractive and simple user interface.
Remember:
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Thank you