Hi,
You can use followeraudit as it is Twitter tracking tool. You can track your as well as any other public Twitter account’s followers.
You can track your followers gain and loss on daily, weekly or monthly basis. This helps in finding out what causes more following or unfollowing.
Get real-time alerts whenever someone unfollows you.
Followeraudit also provides you with other features which are really useful that are
-identify fake followers from your or any other public Twitter account.
- compare audit report of multiple users
-get a list of all the fake and inactive(ghost) followers
-block them from the dashboard without surfing twitter
-get detailed followers analytics.
Hope you find my answer helpful.
Just logged in to look around and can't even see the feature I was using the most - the ability to see inactive followers or the accounts that don't follow you back and remove them :| So don't mind my previous comment.