If you want to know how to see who viewed your Facebook profile, then follow the simple instructions. On your iOS smartphone, launch the Facebook app and enter the username and password to log into your account. Now, go to the main drop-down menu and select the option of “Privacy Shortcuts” from there. Then, tap on the option “Who viewed my profile”. Now, you will see the list of people who viewed your FB profile. You can also use the “Social Fans” app to know who looked at your Facebook profile.