So I'm going to visit Istanbul soon and planning to take a Havaist bus from the airport to the SultanAhmet square. I know I can pay with an
IstanbulKart for the ride but I don't want to buy it. So I would rather pay with a credit card. And I'm not sure if it's possible or not. The official source of information doesn't tell anything on this matter (at least in English). The various unofficial ones directly contradict to each other.
So the question is: can I enter a Havaist bus and pay just by swiping a card like in a supermarket? Or is the only alternative to using
IstanbulKart is to download the Havaist mobile app, create an account there, load it with money and then scan QR code? Thanks, everyone