With the development of science and technology, human life has become more convenient and comfortable. The development of IT led to people's use of diverse smart devices. The internet based network system of smart devices triggered the emergence of IoT era. With increases in smartphone users and smartphone application (App) services, residential life of people have become more convenient. Nevertheless, it was found that the active senior generation with a lot of residence time in housing didn't

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... use smarthome App often. Therefore, this study tried to propose a smarthome App promotion plan for convenient and comfortable residential life of the active senior generation. This study chose domestic five kinds of apartment smarthome App for the active senior generation, and surveyed and analyzed their Graphic User Interface. As the result, they somewhat lacked layout, menu, icons, and colors in terms of the active senior generation' usability. Therefore, this study proposed an easy-to-access and easy-to-use smarthome App GUI by taking into account the physical characteristics of the active senior generation. It is expected that the GUI proposed in this study will contribute to increasing the active senior generation's usability of smarthome App and thereby improving their quality of life.