Tweetie 2.0 for iPhone was the first app to introduce the pull-to-refresh[1] user interface mechanism.
The Mac OS X version of Twitter had many of the same features as its mobile sibling.
The beta of the Mac version was leaked to the popular torrent site Demonoid a week before the official release.
[2] Twitter stated that the acquisition stemmed from the lack of an official, Twitter-branded mobile application.
Ultimately "Twitter for Mac" was discontinued after a very slow maintenance schedule in March 2018,[5] being eventually replaced by the iOS version compiled using Catalyst in October 2019.