Messages sent from the new app will sync across all the user’s devices, with both video and voice call features working here as well. When using the service, users will have easy access to their contact lists and chats, and will receive alerts for new messages. The new Hangouts app runs on Chrome OS and Windows (no Mac support yet), with chat icons camping out on the desktop. The app continues a trend we’ve seen with Chrome, giving users more functionality outside of the browser. Google has launched a new app for Chrome OS and Windows that gives users direct access to their Hangouts conversations right on the desktop.