I want an app that works on both andriod and ios.

I need someone to create an app similar, but certainly much more simpler, to UberEats or DoorDash. Hello, and thank you for reaching out to me. This is the full description and details of the app I have in mind. I will try to simplify it as much as possible to make it clear enough to execute. The application should be available on both IOS and Andriod. The app will be divided into two parts, Food Ordering Service, and a Grocery Ordering Service. I.e. When a registered user first opens the app, they’re asked to choose from either the two “Order Food”*, or “Order from a market”*. Registration: When first accessing the app, the user should do a very quick and tireless registration like first name, last name, and a permanent address (temporary addresses can be added within the app) Market Delivery: If the user taps on “Market Delivery” a new menu shows up, which shows six boxes (3 in every column) more like categories, like: snacks, drinks, household items, and etc. If the user taps on “Snacks”* let’s say, a new menu shows up which shows all different types of snacks available for purchase (chocolates, chips, etc..) ***This menu SHOULD be accessible from my main control panel, and I can be able to add, delete, or change the prices of the listings. Say the user went ahead and added several items to their basket, they should be able to proceed to checkout somehow, and when they do confirm the order, the order will be shown on my main control panel and ALSO should be forwarded to the Delivery Guy’s app. (I don’t want any tracking services, or online payments, the user will only get to choose whether to pay cash or by card) Now once the order is confirmed a delivery boy will automatically be RANDOMLY selected to do this task, then the delivery boy will go to ANY near-by grocery story or market, pays for the items, and delivers to the customer. So, it’s clear that here the main subjects are both the user and the delivery guy. Food Delivery: Here, it’s almost a similar story but the only difference is that there wont be any delivery guy since the order will go directly to the restaurant ordered from, i.e a customer opens the apps, chooses to order food, again, “Boxes” will show all different restaurants open for delivery, places an order, chooses payment type, and confirms the order. Then the restaurant will receive the order on a web-based platform** where they can either accept or decline the order. And if accepted the only thing left is for the customer to wait till the restaurant delivers the food. Now, this is the main concept only, I’m sure I have skipped some more details, which the developer can add themself. I would also like for the app to have two unique set of colours, for the grocery section I prefer all menus and colors to be the shades of lime green, and for the restaurants section I prefer all menus to be the shades of turquoise. Of course I’d appreciate any ideas. This should be a relatively simple app to make. I do not want many groundbreaking features, but yet a very stable and SIMPLE design that would attract users. One thing to mention is that, later in the future I can still work with the developer to better enhance the app and add more features. *Menus, and names are only used for demonstration purposes, as I mentioned earlier, simplicity is what I’m looking for, and thus most names and menus should be changed to Logos. i.e The “Order Food” could be changed to any logo representing food, say a knife and a fork. **The web-based platform used by restaurants can be very simple, no need for too much details and no need to complicate it, a very simple but yet something that works.