Amazon is a marketplace and provides exposure - in other words, they bring you traffic besides providing ecommerce functionality. Possibly a lot of traffic if there's not much competition already in your space.
With Shopify you have primarily an online store solution. It's up to you to do your own marketing somewhere to drive traffic. Shopify does have what they call "Shop" now, which works like a marketplace, but in my experience that's still a relatively small channel for Shopify sellers.
> Shopify does have what they call "Shop" now, which works like a marketplace, but in my experience that's still a relatively small channel for Shopify sellers.
It's getting pushed harder due to things like Shop Pay being a thing. I've actually been trying to use it more, given I do purchase an increasing number of things from Shopify-powered retailers - but their search and targeting still needs a lot of work for it to behave like a proper marketplace.
Shopify requires you to build out performance marketing strategy and with the IOS changes, targeting has lost efficiency. It’s more expensive to acquire customers.