Background and Purpose: The Senior Sway mobile application uses the iPhone/iPad gyroscope to assess postural sway and motion reaction time. Impairment in postural sway and motion reaction time have the potential to increase risk for future falls. Senior Sway thereby has the potential to provide a quick, easy to use, objective measure for predicting falls in older adults. The purpose of this study was to evaluate the feasibility of the Senior Sway mobile application and its associations with fall risk in community-dwelling older adults. Methods: Adults older than 62 years were recruited from senior centers and community events. Descriptive and bivariate statistics were used to examine feasibility on the basis of enrollment, time required, satisfaction with application, and association with fall risk. Results and Discussion: Fifty-seven adults were recruited. Use of the Senior Sway mobile application was feasible. Ninety-one percent said that they liked the application and reported length of time of assessment was "just right." The average Senior Sway score was 64.0 (range: 47.8-84.0), which was significantly associated with the 30-second sit-to-stand test. In addition, the motor reaction time score was associated with the Timed Up and Go. Conclusions: Senior Sway is a promising application to improve identification of adults at risk for falls and need for rehabilitation but warrants further research.