The success of an e-commerce application depends on the effectiveness and
user acceptance of the application. Analysis of user needs and user experience is
very important to support the success of an e-commerce application. User
experience (UX) is a study that identifies the interaction of user needs, expectations,
and acceptance of products or features in e-commerce. In this paper, we will test
mobile e-commerce applications with B2C (Business to Customer) business models
in Indonesia. In this study two mobile e-commerce applications will be tested using
usability metrics by looking at the success rate of task completion, the time needed
to complete a task, and testing the level of satisfaction after the use of e-commerce
applications by respondents. Testing data collection is done in two ways including
the task of Scenario testing and User Experience Question (UEQ). This test is used
to see the comparison of two e-commerce with the best rating in Indonesia, where
the functionality of a system can be used by users effectively, efficiently and
satisfactorily in achieving certain goals and finding features that are potentially
efficient towards customer satisfaction of each e-commerce being tested. In this
study, the results of the task scenario testing comparison on two mobile e-commerce
applications on search product features and payment features with a significant
time difference. The level of user satisfaction is on an average scale of 2.05 to 2.53,
meaning that the two applications tested are in the zone of positive responses to
satisfaction when using the application.