Apple is the first major player to apply the app store model to software for notebook and desktop computers. Intel launched its AppUp store in early 2010. Google launched the Chrome Web Store, which contains apps, themes and extensions for the Chrome browser. Many app stores are themselves applications that you install and run on your computer; they aren’t Web sites that you visit. Many have a slick look and feel (modeled closely on Apple’s wildly successful iOS App Store) Analyst: “App stores for computers would have to have a tough time catching on as selling software in the notebook/desktop market””]
Source: https://www.csoonline.com/article/2126836/2011–year-of-the-desktop-app-store-.html