In this paper, we study the usability factors on two major mobile payment applications on two different service providers in Thailand. These two applications have a different unique selling point. One is a number one mobile phone service provider which is well known for excellent services and used to own by a formal prime minister. Another one is a famous bank which integrates technology into financial services. The goal of this research is to study usability factors on mobile payment applications that affect the intention to use factor. Those factors are perceived usefulness, perceived ease of use, trust, design and political view. The questionnaire survey was conducted to ask a new generation of people. They were asked to evaluate by randomly selecting the tasks of applications and fill out the questionnaire after finishing the task. The result shows that usefulness, ease of use, trust, design affects the intention to use factor on mobile payment applications. However, political view factor does not significantly affect to the intention to use factor, but it shows an interesting result.