Aging is a global issue that affects many countries such as Taiwan. The rapid rise in the elderly population has led to a rise in serious medical problems. Therefore, ways to improve elderly individuals' physical and mental health has become an important topic. This paper suggests an exercise-improvement platform and presents the design of the end-user application software for mobile devices. As elderly individuals exercise in sports centers, data collected during exercise can be uploaded to this platform through the software. In addition, physiological data measured by the individual during exercise at these centers or at home can be uploaded to this platform.