Friend Or Follow - Who are you following on Tumblr that's not following you back?
Janetter - Janetter is a Twitter client application. Faster, smarter, and more powerful.
Tweeticide - Tweeticide – Delete All Tweets is a commercial app that enables you to delete all of your tweets at once.
YoruFukurou - YoruFukurou (NightOwl) is a Twitter client for Mac OS X, designed for Twitter addicts.
Tweedle App - Notion is nice but sometimes all you need is an app like Tweedle.
Tweet Cleaning - Tweet Cleaning – Delete Tweets is a free to use social tool application created and published by Serkan Ozcan for Android and iOS devices.