SMS tickets were withdrawn on 27 April with the introduction of the new zone fares. The ticket overlapped with the single tickets sold on the HSL app. Nowadays the majority of mobile phones in use are so called smartphones on which you can download the HSL app to purchase single tickets. Read more about the app and download it for free.
In addition, you can buy tickets for individual journeys using value loaded on your HSL card. Single tickets are also available from kiosks, shops and service points. In addition, you can buy single tickets from ticket machines and bus drivers. Tickets are not sold on commuter trains, trams or on the metro.