1. The App layout should be from right to left because I am Arabic. Do not worry about Arabic because I will fill all texts.
2. a user can offer his car for selling by putting some pictures and some details of the car.
3. a user can search a car for buying by determining some criteria search.
4. the app should contain auction section which make buyers to auction about a car offered by a seller as under auction at determined period.
5. the admin should has a simple web page which make the admin controls the database.
6. the apps should be delivered with the source code of each platform.
7. App can send notification to a user as desired favorite after connecting with the server