Multi IOS IPAD ONLY ((pos)) SaaS

I want to build a multi pos for ipad only SaaS , i want the pos for multi use as food and beverage industry and cafe , laundry's , football arena , flowers shops , and etc .

i want the concept as below * please READ and SEE below LINKS *

and send me demos .

https://www.posrocket.com/

https://www.vendhq.com/asia/

https://www.figmentpos.com/

https://www.foodics.com/

www.squareup.com

and more .