Vienna public transport tickets via Mobile phone / SMS

Is it possible to buy a ticket for public transport in Vienna via Mobile phone by sending SMS ? Or should I buy a paper ticket from ticket machine ?

There is an option to buy a public transport ticket in Vienna with smartphone, by using a mobile application. You can use WienMobil app or Wiener Linien ticket app. If you don't have a smartphone with Android or iOS, it is also possible to buy a ticket via mobile online shop.

So it is not necessary to buy a paper public transport ticket from ticket machine in Vienna.