1.Check your Facebook profile Visitors using Who viewed my profile android app

Link:-https://play.google.com/store/apps/details?id=com.bilal.whoviwedmyprofile
This app has a free and paid version
The free version doesn’t shows the comprehensive list ,where as the paid one shows the complete list.
You can the the free app
Just download from the link and login with your Facebook account,
And get the list.

2.How to Mass Unfriend friends on Facebook

Unfriend people on your Facebook profile in bulk ,follow the simple procedure below
Login to Facebook,
If you are using chrome browser the press F12
Or press
Ctrl+shift+k on Mozilaa Firefox

Then goto console and paste the following script
http://pastebin.com/6BeijbgK
And press enter

Wait till the unfriending process completes

click here to know who visited your profile

click here to unfrend