Stopfinder, developed by Transfinder Corporation, serves as a specialized transportation management solution for school districts seeking to modernize parent communication regarding student transportation. The Android application functions as a bridge between school transportation departments and families, providing visibility into bus locations and schedules through a centralized digital platform. The application's core functionality centers around real-time bus tracking with GeoAlerts technology, allowing parents to establish custom notification zones around stops, schools, or along bus routes. These geofenced alerts trigger when buses arrive or depart specified locations, providing parents with timely updates about their children's transportation status. The system also facilitates direct communication channels with transportation departments and enables sharing of stop assignment information among authorized family members. User experience varies significantly depending on district implementation and GPS hardware integration. The interface presents a map-based view of bus locations with color-coded status indicators and estimated arrival times. Setup requires district-specific authentication, and functionality remains entirely dependent on the participating school system's technological infrastructure and data sharing policies. Real-world usage patterns show highest engagement during morning pickups and afternoon dropoffs, with parents typically checking the app 10-15 minutes before scheduled bus arrivals. User feedback indicates substantial improvement over earlier versions, with multiple reviewers noting significant enhancements in reliability and functionality. Amber Nicole's updated August 2025 review demonstrates this evolution, stating the app transformed from 'pretty worthless' in 2021 to 'much more helpful' in recent school years, particularly appreciating the tracker functionality amid irregular bus schedules. Jersey Calaycay's September 2025 review highlights the multi-child tracking capability and proximity alert system as particularly valuable features for managing family logistics. The application demonstrates strongest utility in districts with robust GPS tracking systems installed on buses, providing peace of mind through transportation visibility. Limitations include complete dependency on school district participation and technological infrastructure, with functionality varying significantly between implementations. Performance issues may occur in areas with poor cellular connectivity, and the 3.1 rating suggests ongoing refinement opportunities. Ideal use cases involve urban and suburban districts where transportation logistics present daily challenges for families managing multiple school schedules.