Car Wash Booking App Development

I need a mobile application that lets drivers book and pay for car-wash services straight from their phones. The project must ship as fully tested builds for both iOS and Android.

At its core the app should allow users to:
• Find a nearby wash location (or mobile crew)
• Select a service package and an open time slot
• Pay securely in-app
• Receive real-time status updates via push notifications and email

An accompanying web-based admin panel (or a Firebase console if you prefer) should let me add locations, change prices, confirm bookings and view basic reports.

Deliverables
1. Universal codebase with clean, well-commented source in a Git repo
2. Release-ready binaries for the App Store and Google Play
3. Simple deployment guide covering backend, payment keys and notification certificates

If you have previous work involving scheduling, on-demand or logistics apps, please share it when you reply so I can gauge fit quickly.