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.
Hive - Seamless project management and collaboration for your team.
Twitterrific - Twitterific is an app that offers several functions and fun features for your Twitter account.
Sup! Standup Bot - The complete stand-up and follow-up bot
Fenix for Twitter - A fresh Twitter experience, for Android
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.