Financial Technology or called FinTech has brought a new color to the financial world. Some positive impacts of fintech development in Indonesia are the ease of financial services and completing the financial transaction chain. The purpose of this research is to evaluation an application Member XYZ using Unified Theory of Acceptance and Use of Technology (UTAUT) method. this research using quantitative method and processed the data using SmartPLS. The result from this research, some factors: Effort Expectancy, Social Influence, and Facilitating Conditions define as significant factor of user acceptance especially in fintech application.