by Elton LaClare.
Hello,
I had the same difficulty as you and was unable to open the app in the desktop. I'm not sure what you're hoping to do, but I found this site useful for emulating the app on the desktop. I was just tinkering with CSS, so in my case this worked well enough. It does, however, seem to be an older version of the app, as it's not possible to view quizzes and other modules that have been recently added to Moodle Mobile.