You can already use Signal for secure chats on the desktop, but you've had to use a Chrome web app to participate in those encrypted conversations. What if you don't like Chrome, or would just prefer something more elegant than a browser? Signal is ready to help. It just released a stand-alone PC app, Signal Desktop, that offers privacy-minded messaging without heading to the web. The experience isn't a radical break from what you've known before, but it will make sure that you don't type in the wrong browser tab and reveal your innermost secrets.