Inclusion Criteria:  English-speaking (app is in English) Caregiver (parent, legal guardian, grandparent, etc.) to a child with cancer Caregiver to a child with cancer currently undergoing therapy (chemotherapy, radiation, etc.) Caregiver to a child with cancer who anticipates therapy to continue for 6 months after recruitment Caregiver to a child with cancer between the ages of 0 and 21 years old Must own a smartphone or other internet capable mobile device  Exclusion Criteria:  Non-English speaking (app is in English) Caregiver with a child with cancer who is not currently undergoing therapy Caregiver to a child with cancer who does not anticipate therapy to continue for 6 months after recruitment Caregiver with a child over age 21 Caregiver who do not own a smartphone or other internet capable mobile device