A Twitter app icon on a mobile phone is displayed April 26, 2017, in Philadelphia. Meta is poised to launch a new app that appears to mimic Twitter, marking a direct challenge to the social media platform owned by billionaire Elon Musk. A listing for the app, called Threads, appeared on Apple’s App Store, indicating it would debut as early as Thursday, July 6, 2023. (AP Photo/Matt Rourke, File)