I’m building a mobile application that will connect consultants with clients, operating much like the Healthplix model but focused on wider consultancy services for Civil engineering Construction . The entire solution will be Android-only for the first release. Core flow Users land on an intuitive login screen where they can register or sign in either with traditional email + password credentials or a quick phone-number-and-OTP option. Once authenticated, they see a role-based dashboard: consultants manage their profile, availability, and consultations, while clients can browse consultants, book sessions, and track their history. Key expectations • Clean, modern UI consistent with current Material guidelines. • Fully functional authentication (email/password & OTP) with secure backend integration. • Role-aware navigation that cleanly separates consultant and client experiences. • Scalable codebase (Kotlin or Java) with clear documentation so future iOS work can reuse logic. • Admin endpoints prepared for future expansion, even if an admin panel isn’t surfaced in this phase. Deliverables 1. Production-ready Android app (APK + source). 2. API documentation or Postman collection showing every call you created. 3. Brief hand-off guide covering build steps and environment variables. I’m happy to clarify edge cases and provide sample UX references from Healthplix once we get started. If you have proven experience in Android, secure login flows, and role-based dashboards, let’s discuss your approach and timeline.