create customize product app for shopify

I want a app which allow customer to design their own custom products like thjis

https://www.supersocks.co.uk/pages/personalise?handle=couples-face-mash-socks

https://www.myfacesocks.com/pages/custom-face-socks-3d-preview-add-pictures-and-name-colorful

There are lot custom product maker but none of them remove background.