If you were wondering what in the universe could be more unreliable than Xfinity/Comcast internet service, look no further than their app. Almost every time (read greater than 90%) you open the app, it just crashes. If you happen to get it open, then rest assured that it will crash before you complete whatever it is you were attempting to do. Unfortunately, given how terrible Xfinity is as an ISP, you'll want to be able to use the app pretty often to check when your service will be back up after "unplanned maintenance". Pro-tip, if you happen to be lucky enough to be in an area where they don't have a monopoly, use a different ISP who will likely have both better service. If said ISP has an app, it can't possible be any worse than this one, that's for sure.