Digital Voucher website – which software to use?

Hi guys, apologies in advance if this is the wrong sub for this. I’m looking to create a website where people can buy digital vouchers, which can be spent at a store (basic premise). I have been told that I should focus on progressive web app development, over a native website, is this sensible? I am totally amateur when it comes to software development. But essentially I am trying to build a very basic landing page, where users can sign up, and importantly I can add a list of stores that accept the voucher, when people search their location. I would like something that is easy to integrate with voucher software , so the backend stuff is taken care of. Any suggestions ? *edit – spelling