At flea-markets, i think about 90% of all transactions are non-cash in Sweden. It's nearly all Swish. Swish is amazing - it's mobile payments supported by all t

At flea-markets, i think about 90% of all transactions are non-cash in Sweden. It's nearly all Swish. Swish is amazing - it's mobile payments supported by all the banks with no transaction cost. You type in somebody's phone number, the amount to give them, then authenticate it with your pin code (using a cert issued by your bank - basically another app).