The study aims to examine the current phenomena where consumers in Sweden increasingly choose mobile payment services as a payment method instead of using cash or credit cards. The study wants to answer the question “how does the increasing use of mobile payment services affect the consumer/user’s consumption and why do we choose the software as a payment method?” The study explains the main functions and characteristics of the top four mobile payment services in Sweden, but applies a case study on the most popular mobile payment service: Swish. The characteristics and functions that is examined is therefore delimited to Swish; but the linkages drawn from the why the consumer use mobile payment services, to a consumer’s consumption choices can of course generally apply to several mobile payment services. The study is divided into parts and chapters to increase reading comprehension, understanding of structure and fast identification of relevant and needed information.