• \>= 18 years of age.

• Diagnosis of bladder, breast, colon, endometrial, kidney (renal cell carcinoma), ovarian, prostate, or rectal cancer.

• Completed all cytotoxic chemotherapy, immunotherapy, targeted therapies, or radiation (if indicated) prior to enrollment. Hormonal treatments are allowed.

• Owns a smart phone that has access to the Internet and can receive daily text messages.

• Able to speak and read English or Spanish

• Have a support person \>= 18 years of age who speaks English or Spanish and is willing to provide informed consent and support the participant throughout the study.

• \>= 4 weeks since a major surgery to start of intervention (removal of port or catheter (cath) is not major surgery; reversal of ostomy is major surgery and will require at least 4 weeks prior to enrollment).

• Readiness, as determined by the Physical Activity Readiness Questionnaire (PAR-Q). If there are any indications that home-based exercise might be unsafe based on PAR-Q, the patient will not be enrolled until confirmation from the patient's provider is received via email and/or phone that they are safe to exercise. Providers do not need to be contacted if patients answer 'yes' to 'Is your doctor currently prescribing any medication for your blood pressure or for a heart condition?

• Identified by a cancer survivor participant who has consented to participate in Tools To Be Fit as their support person.

• 18 years of age or older.

• Speaks and reads English or Spanish.

• Consents to complete two online surveys and four 1-on-1 health coaching calls during the 48 week study.