Inclusion Criteria:  Have had one or more of the cancers of interest (i.e., breast, colon, bladder, prostate, endometrium, esophagus, lung, kidney &amp; renal pelvis, stomach) Complete active cancer treatment at least three months prior to enrollment, with the exception of anti- hormonal therapy Possess an Android or Apple smartphone Having a Facebook account, or are willing to make one Engage in some type of physical activity (PA) as assessed by PA readiness survey.  Exclusion Criteria:  Diagnosed with stage IV cancer Completed primary cancer treatment (e.g., surgery, radiotherapy) less than six months ago with new cancer diagnosis or recurrence