SemillappDigital coupons and loyalty with Apple and Google Wallet

Web & applications developer at Azirgo SAS. I worked on the React Native mobile app and the API behind it.

A loyalty programme only works if the customer has the coupon at hand at the moment of paying. A plastic card gets left at home, and a coupon buried inside yet another app gets lost among notifications.

• React Native + Expo mobile app published for iOS and Android.
• Apple Wallet and Google Wallet pass issuing, so the coupon sits next to the user's cards.
• A GraphQL API as the platform's data layer.
• Coupon and loyalty flows for the participating merchants.

• Lean on Apple Wallet and Google Wallet instead of requiring the user to open the app: the pass lives where they already keep their cards.
• GraphQL so the app requests exactly the data each screen renders, without over-fetching on mobile connections.
• A single React Native codebase for both stores.

• Apple Wallet and Google Wallet passes use different formats and signing rules, and both had to be generated correctly.
• Keeping the wallet pass in sync with the real state of the coupon.
• Shipping and maintaining the app on both stores.

Semillapp is published on the App Stores and is one of the four production mobile apps in this portfolio: real users open it to redeem their coupons.

• View on the App Store
• View on Google Play