iPhone
Download on App Store
Download CouKey on iOS and keep every stamp card in one secure wallet.
Coming soon
Official store link will be available here soon.Back to CouKeyCarry every
Download the customer app
Carry every
stamp card
in your pocket.
Download CouKey for iPhone or Android, collect digital stamps at local businesses, and keep rewards ready when you need them.
🍪
CouKey
Digital loyalty wallet
London
Sunrise Cafe
Stamp card
8 / 10
Pizza Club
Stamp card
Reward ready
Green Bowl
Stamp card
5 / 6
Android
Download on Google Play
Install CouKey on Android and collect rewards from participating local stores.
Coming soon
Official store link will be available here soon.How it works
Start collecting in three steps.
1
Choose iPhone or Android.
2
Install CouKey from the official store.
3
Open the app and start collecting digital stamps.
All cards together
No paper cards, no lost rewards. Your active stamp cards stay in one app.
Local rewards
Collect stamps at London cafes, restaurants, salons, and independent shops.
Coupons that stand out
See available rewards, event coupons, and redemption status at a glance.
Official store downloads
Use only App Store and Google Play links published by CouKey.
Business owner?
Want your store to appear in CouKey?
Partner stores can manage stamp cards, staff permissions, events, and Coumates workflows from the CouKey partner dashboard.