1- I need to built an home application as glossary online supermarket
2- I need native development for the tablet to make it only use my app
3- I'll buy my tablet with app to women home use
4- I need to make some api avaliable on my app like booking to reserve hotels and saudi fly to reserve flights and other api like pray times and so on
5- so I need four user interfaces : first for home orders and other api's
6- second app interface to my driver to get the needs of houses and deliver order and go to supermarket then navigate to the user home with his goods
7- third api to office to calculate all user items and make automated bills
8- the final for the administrator which can modify and edit and view every process .
9- last point : I have many stores can process the order so the order must be related to specific store or office .