Swish | 28,704 followers on LinkedIn. Simplifying every day life since 2012. | With 8,6 million private users and over 300 000 connected companies, Swish is the most popular mobile payment service in Sweden. Once upon a time, though not so long ago, there was a country high up in Northern Europe where people tried to pay for their share of the joint dinner. It was tedious for the poor citizens who really wanted to live a little more spontaneously.