How can I build a multi step product on my website?

[Printpire]

i am interested in building something like this
is there any app to do this or what options do i have. i know hatsemb is built on shopify just dont know how they achieved the process. any help?
https://hatwizard.com/order
https://hatlaunch.com/Order
https://hatsemb.com/pages/customized

[gr_trading]

Hi @Printpire 

Please refer to the below URL what we build.

https://ninjatransfers.com/products/dtf-transfers