We now had a strategy to effectively expand Twitter's reach with Web as a Progressive Web App (PWA) that could become our installable app for Windows and the lightweight Twitter Lite for Android - one codebase, multiple clients. This led to our Responsive Web codebase being the spearhead for all platforms via web browsers plus iOS and Android codebases as targeted strategic platform investments.
To focus on the most important priorities, Twitter directed its attention to the core clients it would invest in strategically. Supporting the two separate codebases was no longer a sustainable option and ultimately we sunset the native Mac app. Over the years, Twitter for Mac and Twitter for iOS diverged as Twitter increasingly focused on its mobile apps.
Historically, Twitter had a Mac app that shared the same roots as our iPhone app. What happened with the old Twitter for Mac?
