If a patient has not submitted information in the past 24 hours, a study personnel will call the patient to discuss the protocol and any difficulties they may be having with completing it. The phone call will not be punitive, but will be aimed at decreasing study attrition, identifying reasons why patients are not compliant with the stated protocol, and identifying possible measures to improve the protocol. Three attempts will be made to contact an individual patient. All patients will receive a call 5-6 days following discharge to assess use of the app regardless of attrition status.