This online software Offers a Efficient way to know who is and is not following You on Twitter.
Here are the steps to using this tool:
2 ) Click on the “Sign in with Twitter” button.
3 ) Fill in Your “Username” and “Password” in the appropriate boxes, and click on the “Authorize app” button.
4 ) You Will Be redirected back to the main page.Now, check mark the “” or not(it takes longer to load with this option unchecked).
5 ) Click on the large “Whack” button.
6 ) Be Patient, as it may take a while to populate Your followers and unfollowers(It depends on how large Your list is).
7 ) Near the top of the next page, there are some drop down menus that are titled “Sort by:” and “Show:”. In the “Show:” drop down Choose either “Only following” or “Only followers”.
8 ) Depending on which drop down You select, You Will Be directed to the next page where You Can “Unfollow” non-followers, or “Follow” followers.
Simply play around with this Free online tool!
Another handy Twitter tool I Have written about is: