Does it cover the greater Helsinki area? As a Vantaa resident, I spend over 100 euros a month on public transport. This app sounds too good to be true. What's the catch?
Yes it does (internal Vantaa) although I don’t recall if city bikes have arrived there yet (unlike Espoo). For cross-region tickets (Helsinki + Vantaa for instance) you need to pay around 100 € with the app.