Move Together Boston Feasibility Pilot (Sit Less, Move More App for Black Breast Cancer Survivors & At-Risk Relatives)

"* The Move Together app allows users to set daily goals for increasing physical activity and decreasing sedentary time, track progress on goals, message their buddy, and access external educational infographics and other resource links.~* Garmin activity tracker in this study is for participants to track their steps and sedentary time."