Phase 1: Agile MVP Development – Build core features like user onboarding, background tracking, and basic trip detection, implement the nudge system for verification, and set up a secure backend API and database.

Phase 2: Pilot Testing & Refinement – Deploy the MVP to a pilot group, gather feedback on battery usage, usability, and data accuracy, and refine algorithms and UI.

Phase 3: Advanced Feature Integration – Add machine learning for better mode detection and integrate advanced features like co-traveler tracking, trip diary, and a scientist dashboard.

Phase 4: Full Deployment & Improvement – Launch on iOS and Android, scale infrastructure, and continuously enhance the system based on user feedback and new technologies.