Apple Wallet and Google Wallet are on virtually every smartphone on the planet. Most people associate them with boarding passes, bank cards, and event tickets. But buried inside these apps is a feature that almost no small business is using — and it might be the most effective customer retention tool available to local businesses right now.
What Are Wallet Passes?
Both Apple Wallet and Google Wallet support what are called "passes" — digital cards that can be added to the wallet app and updated in real time. Airlines use them for boarding passes. Retailers use them for gift cards. Event venues use them for tickets.
But the pass format is completely open. Any business can create a pass that displays whatever information they want — a loyalty card, a membership card, a discount voucher, anything. And crucially, passes can be updated remotely. A loyalty card can show the customer's current stamp count and update automatically every time they visit.
Why This Matters for Local Businesses
Think about the difference between a paper stamp card and a wallet pass:
A paper stamp card sits in someone's wallet or bag, gets forgotten, gets lost, and gives you zero information about your customers. A wallet pass sits on the customer's lock screen, can send notifications, updates in real time, and gives you complete visibility into every customer's visit history.
When a customer adds your loyalty card to their Apple Wallet or Google Wallet, they're giving you a direct line to their phone's lock screen. Not through a social media algorithm. Not through email open rates. On their lock screen, next to their bank card.
How Wallet Passes Work Technically
For Apple Wallet, passes are created as .pkpass files — a package that contains the card design, data fields, and a QR code. Apple has strict specifications for these files and they need to be signed with an Apple developer certificate, which requires an Apple Developer account and some technical setup.
Google Wallet uses a different system called the Google Wallet API, where passes are created as objects through Google's API and linked to a Google account.
Both systems are well-documented but not trivial to set up from scratch. You need developer accounts, API credentials, signing certificates, and backend infrastructure to create and update passes. For most small business owners, this is not a realistic DIY project.
The Easier Route
This is exactly why tools like StampDuck exist. StampDuck handles all the technical complexity of Apple Wallet and Google Wallet integration, and gives local businesses a simple dashboard to manage their digital loyalty program.
A business sets up their card design — logo, colours, reward description, stamp goal — and gets a QR code to print or display at the counter. Customers scan the QR code and a loyalty card appears in their wallet in seconds. Staff scan customer cards to add stamps. When a customer reaches their stamp goal, the card updates automatically and the scanner shows a reward redemption screen.
The customer never downloads an app. The business never deals with Apple or Google's APIs directly. The whole thing works out of the box.
What Customers Actually See
On iPhone, the loyalty card sits in the Apple Wallet app alongside the customer's bank cards and other passes. When they're near your business, the card can surface on their lock screen automatically. The card shows your logo, your brand colours, and their current stamp count — updating in real time every time a stamp is added.
On Android, Google Wallet works the same way. The card is always accessible, always up to date, and branded to your business.
The Data Advantage
Unlike paper stamp cards, every interaction with a digital wallet loyalty card is tracked. You can see exactly how many active loyalty customers you have, who's close to a reward, who hasn't visited in a while, and how your stamp rate changes week over week.
This data changes how you run your business. You can see whether a promotion drove new loyalty sign-ups. You can identify your most loyal customers. You can understand your actual repeat visit rate instead of guessing.
Getting Started
If you're a local business thinking about switching from paper to digital, the barrier is much lower than it used to be. You don't need technical knowledge, you don't need customers to download anything, and you don't need expensive hardware.
The businesses that adopt wallet-based loyalty programs now are getting ahead of a shift that's already happening. Customers increasingly expect digital-first experiences even from local businesses. Meeting them where they already are — on their phones, in their wallets — is just good business.