TweetDeck is a product from Twitter that makes it easy for users to follow multiple accounts and see all updates in an efficient interface. It also allows users to use multiple accounts at the same time or give one user control over another account easily such as for work or collaboration.
TweetDeck until today is a free service, but there are indications that it will become a paid service through Twitter Blue. The app for Mac has also been discontinued, limiting use via the web only. Twitter also has a CoTweets feature that allows two accounts to share one tweet.
Twitter is also seen to be continuing efforts to develop a new feature like TweetDeck that continues to be built into Twitter. It is named as Twitter Delegate, which can delegate one account to be controlled by many users.
Through it, Twitter account owners can choose other users to be Contributors or Admins like on TweetDeck. Contributors can access DM, send tweets or even create Lists. While Admin will be an administrator with the same access, can only invite users to access or remove and monitor account performance.
Also not sure what will happen to a user's Twitter if this feature is used, such as the interface and so on. This Twitter Delegate is also not sure whether it will be free or paid in Twitter Blue. Let's wait together.