Resident physicians participate in voluntary safety event reporting less than other health care professionals, despite witnessing safety events. 1 During the 2018 Clinical Learning Environment Review at Thomas Jefferson University Hospital, 74% of residents surveyed reported experiencing a safety event, while only 33% reported submitting an event report. In the first quarter of fiscal year 2019, residents at the institution reported 37 of 1999 events (1.8%). The usability of the institutional reporting platform has been identified locally as a barrier. The project team investigated the use of a HIPAAcompliant mobile application already used for clinical communication as an alternative reporting platform for residents. The goal was to increase resident reporting from a historical average of 1.5 events per week to an average 3 events per week during a 10-week pilot. Residents reported events via the secure mobile application. Events were then entered by members of the study group into the reporting system for institutional review. Process changes occurred weekly following interval data review and stakeholder interviews. During the first 2 weeks, 6 residents received education on and access to the platform. No events were reported, and residents stated that they forgot that the account existed when engaged in clinical work. In subsequent weeks, daily reminders were sent to participating residents directly from the reporting account, and supervising attendings were encouraged to identify events for submission with their teams. Eighty-six of 892 total residents were ultimately permitted access to the account. In subsequent improvement cycles, a standardized reply to reporters was composed that requested basic information necessary for event entry. This change improved the workflow for study group members, reducing the need for extensive chart review. Reporting increased throughout the 10-week pilot. In total, 28 events were submitted via mobile application,