Our project aims to search for optimized interface design to provide elders aging between 55-70 years with the best experience and easier transition to the digital age. The findings will be compiled into easy-to-read guidelines that will enable designers fast adoption. This is done in response to Thai society’s accelerating transition into the digital age where a lot of tasks can - or even must - be completed in a mobile application whereby a lot of those applications are shown to not be optimal for elderlies whose motor and cognitive functions are impaired by aging.