The aim of the present study was to examine the variables influencing customer satisfaction and switching intention in mobile services in the Spanish market. Our research model incorporated satisfaction variables, such as service quality and corporate image, and switching barriers, namely sector knowledge and the availability of attractive alternatives. Moreover, our research analyzes the differences in the formation of customer satisfaction and switching intention between two type of subscription contracts – the lock-in contracts and the free contracts, which are the main subscription contracts in this European market. The results presented suggest that our conceptual proposed model fits well the collected data.