The aim of this study is to adapt the mobile application usability scale to the Turkish culture and test its nomological network within a structural measuring model. The model is based on the technology acceptance model. Considering the relationships between usability perceptions, continued intention to use, brand loyalty and actual use of mobile applications of the users, these four variables were included in the model. The study was conducted on 476 participants. Translation of the scales, confirmatory factor analysis, and reliability tests were conducted to test the validity and reliability of the scales. The original construct of the three scales validated by confirmatory factor analysis. Cronbach's alpha coefficients were high or at least acceptable for all constructs. Fit indexes of the model indicated that the model remains within the acceptable limits. Relationships between usability, continued intention to use, brand loyalty and actual use were validated with the sample data.