In an announcement on Twitch’s blog, “We’re bringing all the great features you have on the web to mobile, and making the entire experience slick and intuitive. We’ve also been listening to you, so you’ll see your most requested features coming to mobile today (Dark Mode, anyone?). You will need to log in the first time you open the app, giving you access to all these amazing new features.”
Note that Twitch always had a mobile app, but its user interface wasn’t quite as sleek or as intuitive compared to its web version, especially for streamers who are looking to broadcast on mobile, which is one of the changes and improvements that Twitch made to its new mobile app. There are also a bunch of new features like a Dark Mode, new navigation bars, content that has been tailored to your liking, and more.