Mobile Booking App

I am looking for an experienced developer or team to build a cross-platform mobile booking application for iOS and Android, connected to a web-based admin platform. The app will allow users to book appointments online across multiple industries (such as salons, clinics, gyms, and other service providers). It should include user registration/login, business listings, service details, real-time calendar-based booking, appointment management, notifications, and booking history. On the business side, there must be a web dashboard where providers can manage services, pricing, availability, staff, and appointments, plus basic analytics. The system must be scalable, secure, and built with a clean architecture (React Native, Flutter, or native – open to recommendations). Please include your relevant portfolio, estimated timeline, suggested tech stack, and pricing structure in your proposal.
Contract duration of 1 to 3 months. with 40 hours per week.
Mandatory skills: Android, iOS, User A...