TweetDeck is an online social media dashboard application for managing and monitoring different Twitter accounts. It is used to manage and follow Twitter accounts and newsfeeds, post Tweets, and receive notifications about activity related to one's Twitter accounts. It also provides a customizable dashboard for users to view other users’ activity and manage multiple accounts, notifications, and timelines. The app allows users to create and schedule tweets and use advanced search features. It also allows users to create and manage lists of accounts, add columns to the TweetDeck dashboard and view activity from other users or lists in real-time. TweetDeck is available as a web app, mobile app (iOS and Android) and a desktop app.
Tweebot is an application, tweetdeck is not.