What a wallet pass gives you
Persistence, mainly. Once added, the pass sits in the phone's wallet alongside payment cards, survives browser history clearing, and is reachable in a couple of taps without typing a URL.
The other advantage is push. An issuer can update a pass remotely — a new stamp count, a changed reward — and surface a lock-screen notification, including when the customer is near the venue on iOS.
What issuing passes actually requires
Apple Wallet passes must be cryptographically signed with a certificate tied to a paid Apple Developer account, currently $99 per year. Google Wallet requires an approved issuer account. Neither is a switch a platform can simply turn on.
That approval overhead is why wallet support tends to appear on more expensive loyalty plans, and why some platforms charge per pass issued.
Wallet pass vs. a web-based card
A web-based loyalty card is a page the customer opens in their browser. There is no install, no approval chain, and it works identically on iOS and Android — but it has no lock-screen presence, so it relies on the customer opening a link.
To be direct about it: Bioflow's loyalty cards are web-based today. Customers join from your public profile and open their card in the browser, with nothing to install. Wallet pass issuance is on the roadmap and is not shipped — if lock-screen notifications are a requirement for you right now, a wallet-native platform is the correct choice and we would rather you knew that before signing up.