TweetDeck - TweetDeck is your personal browser for staying in touch with what’s happening now.
Janetter - Janetter is a Twitter client application. Faster, smarter, and more powerful.
Tweetbot - Sync your timeline across your iPhone, iPad, and Mac. Mute tweets by user, hashtag, tweet source, or keywords (including regex). 3rd Party support for image, video, read later, and timeline sync services.
Talon for Twitter - Elegantly designed, ad-free Twitter experience for Android
Socialite - History Ever since we acquired Socialite from Realmac Software in December 2010, we have been planning on releasing a faster, more stable version 2.
Echofon for Twitter - Download Echofon apk 3.1.3.3 for Android. Echofon for Android - A super clean Twitter app