GoodbyeBuddy is a Twitter bot account like FollowerMonitor service. It sends you direct messages when someone unfollows you. Differ than FollowerMonitor which sends only replies (not direct messages). You only need to follow GoodbyeBuddy to use the service. A much better alternative for Qwitter service.
Pros & Cons
|Doesn’t need your Twitter credentials|
|Great idea and simple to use|
|Sends direct messages instead of replies|
|High frequency monitoring. Sends in short time after the unfollow action|