The application keeps showing "Ticket delivery failed" error, although I have a one year renewing subscription and pay every month for AB zone. I ended up having a "not so diplomatic" discussion with one driver because of this and he didn't let me in. Not a good experience after waiting for the bus for 20 minutes in the freezing weather, when all you can rely on is this app. Edit: The problem was solved by logging off/in. This workaround appears as a tip ONLY with the Finnish language settings.