One of the hidden features of the Shopify listing page, is a free demo store link.
How does it work?
Simply add to your store listing any development store link as the demo store:
Yes, we know that usually, a development store requires a password, but here is the nice part.
Whenever a client clicks on “View example store” on your Shopify app store listing, he will be able to enter the store without the password.
Shopify adds a token to the link, which provides a password-less way to browse your demo store.