The Wallet app in iOS 27 lets you make your own digital passes from all those membership bar codes you have. It takes a little work, but it already works well.
Wallet’s Create a Pass in iOS 27
The Wallet app has been used to hold more than just your credit and debit cards for years. Membership cards and digital passes have been a staple of the iPhone app for quite some time.
However, to add a pass to the Wallet, you had to do so in one of two ways. The easiest is to use an app for a service and select the option to add a card or digital pass to the Wallet.