That might be your definition of it, but it's in general wishful thinking. For me desktop apps are apps that run on my desktop computer, requiring an installat

That might be your definition of it, but it's in general wishful thinking. For me desktop apps are apps that run on my desktop computer, requiring an installation process instead of being loaded via an URL and not subject to the browser's sandbox. I've had access or owned desktop computers in various shapes and sizes ever since 1993 and let me tell you, since then until now the notion that desktop apps have a unified look and feel is a really recent phenomenon, that happened due to Apple, OS X and the iPhone. Yes, even Windows 3.1 had standard widgets but historically standard widgets haven't been expressive enough and many developers did not care anyway, especially since most apps were reincarnations of former DOS apps or ports from other platforms. And then the birth of Java made it much worse. E.g. the most popular MP3 player ever on Windows has been Winamp. Besides the file opening dialog, there was nothing standard about it. Most popular chat apps several years back? ICQ and Yahoo's Messenger. Have you been acquainted with their UIs? In terms of nativeness, let me tell you, the web-enabled Facebook Messenger and Hangouts are improvements, because at least they don't mess up the text rendering.