Build me a mobile app

Mobile app (compatible on android and ios) needed. The application will be used by a delivery service and should contain 3 kinds of logins/sign ups - Customer, Delivery person, Admin. On the customer sign up page following details are to be collected: Name, contact number, alternate number, email, address After signing in customer should be able to: 1. Enter the pickup address 2. Enter the delivery address 3. Preferred time slot of delivery 4. Item to be delivered 5. Weight of item 6. Delivery mode (Bike/Scooty/Cab) 7. Distance to be calculated 8. Delivery cost to be displayed (This can be discussed later) 9. Payment options - Cash, UPI (post delivery) 10. Edit scheduled delivery On Delivery Agent sign up page following data need to be collected: Name, contact number, alternate number, email (if present), address, Adhaar card, driving license, vehicle number After login, delivery person should be able to view the following details: 1. Scheduled delivery (pickup addr, drop addr, contact number, bike/scooty/cab, time of delivery) 2. Should be able to enter start reading of bike and stop reading of bike after delivery 3. Should be able to notify the customer that the item has been picked and delivered. Admin should be able to view the following details: 1. List and edit details of all customers and delivery agents 2. List all deliveries made by customers and the assigned delivery person to it 3. Cost of all the deliveries 4. Change mapping of delivery with delivery person 5. List payment statuses of deliveries OTP based login to be implemented.