X (Twitter) - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.
Pointnuts - Pointnuts generates text styles that you can choose to make your tweet more engaging.
140 - Restrict tweets to 140 characters
Refined Twitter - A browser extension that improves the Twitter experience
Periscope on Twitter for iOS - Stream live video inside your tweets
Tweeten 2 - A powerful Twitter client based on TweetDeck.