Earlier this year I built an Apple Wallet pass for Ancileo, the kind that updates on your phone the moment something changes on their side, no new download.
The call that mattered most came early. The pass style they first wanted needs an NFC entitlement from Apple, and that approval takes a while. So we went with a standard pass that could ship right away instead of waiting weeks.
If you're thinking about wallet passes for tickets or memberships, happy to talk through what's actually possible.