Thanks for your feedback zadzalaz. If you will count yourself you will see that facebook will not count only users as your friends, in some cases they will count pages, groups or events (don't ask why). Our app will just count your user friends, and from there that difference. Indeed to get the name of unfriends you will land on our website, from add-on is a form that will sent using POST your details to our website and there will be displayed the friends list. Regards!