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. Tweetbot also has all the features you’d expect in a full-featured Twitter client like lists and direct messages, and others you wouldn’t like a night theme for low-light reading, and much more.
Rotate your iPad or iPhone 6+ to landscape and have a column dedicated to a list, search result, mentions, statistics, or activity stream. iOS 9 multi-tasking is also supported on the iPad
If you spend a lot of time reading twitter in low light, night mode will be much easier on your eyes. Automatically switch based on ambient lighting or toggle manually by swiping 2 fingers up or down in the app.