Simple POS/Order system to android

What we need is: A mobile app, that can take orders. The only parts needed are to take orders, calculate the prize and have a database of addresses, so it easy can write the right address (not gps). Just the text. And be able to remove or add products to the pizza, like tomato. And it shall be easy to add a menucard to the app, so that the pizzamen can add their own menucard with details and specifications. It's very simple. Look at the file I’ve uploaded. All the numbers is menus from a pizza menu card. We need it to be in an app, so instead of taking the order on paper, the order will be taken on the app. It will print the receipt out in the end. Image that you work in a pizzeria and a customer calls the shop. The costumer tells you that he wants a number 21 and an amount of 3 number 14, but one of the number 14 is without tomato sauce, so it’s a special order. Then he says that he want a coke 1,5 liters and dressing on all the pizzas. At the end he tells you that he wants the order to be delivered to his home address on 114th Valhalsstreet. The way it's done now is by writing it all down. (Look at the photo I’ve uploaded). The app have to be able to press the varieties of numbers and of course be able to add x amount of pizzas, and add them to pocket with a calculated prize. Let's say that the costumer wants his pizza without tomato, then there shall be a quick option that lets the pizza man remove tomato from the pizza and of course the other way around as well. Some of the problems with the way it’s done now, is that some pizza men don’t know how to spell. Or their typing is literally bad. So when the delivery boy is out on the run, he can’t read the address. Or the pizza man can read what the phoner has written on the paper, so they have to call the costumer back. That’s a big issue. But the most important thing is when the pizza man is calculating the sum of the order, if he calculates wrong, he loses money. That’s why, this app have to be able to calculate the order correct, even the special orders. So that the pizza man don’t have to calculate for each order. The way to take orders has to be easy to use, even when the order is a special order. And it have to have an address database, so when he wants to find Valhalsstreet, it finds it quick with a search motor. The app need to be faster to use, than a pen on a paper. The app have to be able to print it all out on a receipt, so the pizza man have a concrete set of paper he can look at. Hope you understood the product and that you are ready to begin Yours Kerim Arikan