Not a user-friendly app for non-Koreans. The English translation is terrible and when there's a problem you do not know how to report it. I sometimes don't receive bubble messages from the artist (SNSD Yuri) i subscribe to. I feel cheated for a service i am billed for on the dot every month yet do not receive and have no idea how to report the issue. Don't open the app to international fans if you can't cater to them efficiently.