Application DLTTR removes ALL available tweets, but Twitter has some limits, and the count can be also not zero. Check the FAQ in the application.
★ World best tweet deleter
★ Can delete the latest tweets by an hour, day, week, month, year or all of them once
★ Can help you if you wrote anything you regret about and seconds matter, or drunk tweets you cannot remember at all
★ Specially designed interface with a magic big red button
★ Start deleting your tweets today
★ Think about your info future
★ They are watching you
Warning: App deletes ALL AVAILABLE TWEETS, check out FAQ, and please don't rate app one star for this restriction.