AutoCrypt FMS is a secure fleet management system designed for operators of mobility services and platforms. The system enables real-time monitoring of operations and uses proprietary OBD-II units to collect data from service vehicles for reservation and dispatch in mobility-as-a-service and demand-responsive transport operations. The platform includes a data control system that analyzes and manages data through machine learning for service optimization. Data transmission is secured through encryption and authentication technologies, with protection of personally identifiable information through data encryption and anonymization. AutoCrypt FMS can be integrated into new and existing mobility platforms and includes mobility platform development solutions for fleet operators seeking to connect offline fleets to digital platforms.