Project brief – Create a simple mobile app (copy & paste) I want to create a mobile app for booking sports courts. The app does NOT need to be complex. This is a simple MVP focused on a clean user experience. Main features: User registration & login Book sports courts using a visual calendar Courts: 2 volleyball courts 1 padel court Time slots: 90 minutes From 8:00 to 22:00 User area: View upcoming bookings Monthly membership status Simulated payments (UI only) Simple shop (few products, demo only) App requirements: Mobile-first (iOS & Android) Can be: PWA, or Cross-platform app (React Native / Flutter) Clean, professional UI Simple navigation (bottom menu, back buttons) Technical notes: No complex backend required (can use mock data or simple storage) Focus on UI/UX and core flow Simple, maintainable code What I need from you: Recommended approach (PWA / React Native / Flutter) Estimated price Estimated delivery time Examples of similar apps (if any) Budget: Limited budget Looking for a practical and cost-effective solution Possibility of more work later if the MVP works well