As the Disability Discrimination Act was enacted on April 11, 2008, the environment for web accessibility improved through increased awareness of web accessibility. In recent years, web environment has shifted from PC to mobile system and also the latter has gained more importance as domestic smartphone devices are more used. According to the report 'The Trend of Accessibility to Mobile Applications', which was released by Ministry of Science, ICT and Future Planning, however, the rate is still 78.1% as of 2015, which is not satisfactory. The main reason for the low accessibility is attributed to the development of mobile applications targeting for non-disabled people only. According to the survey 'Current Conditions of Mobile Shopping', more people do shopping on a mobile device than on PC due to purchasing and shipping benefits. In this study, we examine the compliance rate with the guideline for the mobile app 'Mobile Application Contents Accessibility Guideline 2.0'. In addition, we attempt to know the effect of applying the guideline on mobile application and its users from a design point of view. We expect the findings of this study to provide a theoretical background for the compliance with app accessibility.