Comprehensive Car-Hire Operations Management App

This app is for a car-hire business where the app needs to handle both invoicing and staff rostering, I’d think of it less as a simple car-booking app and more as an operations management app. Core app... (Budget: $1500 - $3000 AUD, Jobs: API Development, App Development, Data Integration, Database Management, Invoicing, Mobile App Development, Payment Processing, Project Management, Software Development, User Interface / IA)