To See Who Unfriend You On Facebook Find Out Here
The free app for iOS and Android is called Who Deleted Me!
Who Deleted Me keeps track of your Facebook friend list and notifies you when friends go missing. We'll tell you if they deleted you or deactivated. We'll also tell you when you make new friends!
Facebook doesn't give any function to see who unfriend you.
but now this chrome browser extension and app will tell you everything about who unfriend your from Facebook.
How its work?
Just saving a copy of your friend list after you first use Who Deleted Me.
Who Deleted Me tells you who your missing friends are are and in addition who recently add your Facebook friend list.
When you revisit the app or browser extension, it will then compare your current friend list to the saved version.
Chrome Browser Extension
For iOS | For Android