Inclusion Criteria:  Planned to receive palliative radiotherapy for pain Known cancer diagnosis Able to wear Hexoskin Medical Shirt Ability to use and populate the mobile app (Zamplo) with or without assistance ECOG: 0-3 Willing to provide a list of analgesic (pain relief) medication Willing to complete questionnaires Life expectancy of at least 3 months  Exclusion Criteria:  Receiving whole brain radiotherapy Major cognitive or psychiatric impairments Pregnant women Allergies to: polyester, synthetic fibers Patients with pacemakers or implantable cardioverter-defibrillator (ICD) Patients on a Holter Monitor