Below are the advance features to fit your business logic:

-       Online Booking for Services Inspection for customer vehicles
-       User Profile with Car information
-       Customer Loyalty Program (e.g. if a customer has done a trade of 1000/- OMR plus then allow special rates to them)
-       Multiple Locations for Servicing (e.g. Wadi Kabir and Mabela)
-       Publicly shareable Link fur your customers to view the service checklist of their order
-       Design of app will be as per your business