Rzero is an application designed to help individuals comply with various requirements or terms of supervision by providing proof of identity, location (if appropriate), and communication services. The program provides real time data, two-way communication, appointment reminders, and efficient, dynamic updates on progress. Benefits include: Biometric verification through fingerprint and/or facial recognition, push notifications of appointments, dynamic assessments of performance, GPS location services (if appropriate) with inclusion and exclusion zones, two-way communication through text and video, and alert reminders.