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Partnerkaart Case study
Retail · Loyalty & mobile shopping

Turning a loyalty card into a shopping console.

Partner card (Partnerkaart) — Retail / Shopping App. The Partner card app brings together everything customers need for a convenient shopping experience — the functions of a regular Partner card, plus scan-and-go shopping and payment. Customers can present their card, and manage purchase receipts, loyalty offers and personal discounts, all in one place.

Client
Kaubamaja Grupp
Timeframe
2023
Role
Senior UX Designer
Scope
UX · UI · Product design
01

Recognized work.

The app won two awards at the 2023 Golden Egg (Kuldmuna) Awards, Estonia's national design and advertising competition.

SILVER — Golden Egg (Kuldmuna) 2023
Digital service and application.
BRONZE — Golden Egg (Kuldmuna) 2023
User Experience and User Comfort — The UX/UI Journey.
02

One card, one app.

Partner card (Partnerkaart) already lived in millions of wallets as a physical loyalty card. The brief was to bring that same trusted card into a single mobile app — without losing the simplicity that made the physical card work in the first place — while adding real shopping utility: scan-and-go, self-checkout, and payment.

Partnerkaart app screens: home with digital card, barcode scanning, store map, payment and receipt
Core flows — present card, scan & buy, pay by card, digital receipt iOS · Android
03

Scan it yourself.

The scan-and-shop flow lets customers build their basket in-aisle, product by product — seeing running totals as they go, and skipping the till entirely. Designed to feel as fast as picking something off a shelf, not like filling out a form.

Customer scanning a product barcode in-store with the Partnerkaart app open on their phone
In-store scanning — barcode scan, live basket, running total In-context photo
04

Every screen, considered.

Onboarding, store selection, card presentation, payment method switching, in-store barcode redemption, digital receipts and card settings — each screen built to Kaubamaja Grupp's existing visual language, so the app felt familiar from the first launch.

Full Partnerkaart app screen set: onboarding, store picker, card presentation, in-store barcode scan, payment method, transaction history, card settings
Full screen set — onboarding through settings iOS · Android
05

What it added up to.

100,000 downloads
In the first four months alone — fast adoption for a loyalty app replacing a familiar physical card.
Card, wallet and till in one
Customers no longer need the physical card, a separate wallet app or the checkout line to shop and pay.
Loyalty made visible
Discounts, offers and receipts surfaced automatically, instead of living on paper or being forgotten.
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