Tweetbot is asoftware for the social networking site Twitter meant for use on Apple Inc.'s iPhone, iPod Touch, iPad and Mac platforms.

UberSocial is a full-featured Twitter app for BlackBerry, iPhone, Android and the Kindle Fire.

Janetter is a Twitter client application.

Echofon is the easy-to-use, super fast Twitter app that smartly syncs across all your devices.

Twitterrific is a Mac OS X and iOS client for the social networking site Twitter.