Hi, I have gone through the post and we have ready made POS solution for you. I am experienced developer having good hands on designing and developing Orders, Inventories, Warehouse and other back-end modules.
As you want it in Android and iOS both i will make it within estimated time line and connect with the back-end panel with Cash drawer and printer.
I have developed the Grocery App ,Taxi and Delivery Combined App, Pharmacy App ,Doctor App ,Dating app instagram App ,Restaurant app, Buy& Sell business app, healthcare, social app, chat app, real estate app, eCommerce app, dictionary app, etc...
I'm interested in working with you. I am available almost the whole day for discussion.
Looking forward for your Response.
Thanks Kedar