This started from a surprisingly annoying problem. I had a handful of groceries, got to the checkout, opened my loyalty-card app, and then had to scroll through dozens of cards trying to find the right one. It completely defeated the point of having a digital wallet. I tried existing solutions, including Klarna's loyalty card wallet, but none of them seemed to understand context. They stored my cards, but they didn't help me find the right one when I actually needed it. So I built Cardnook. It learns which cards you use at which stores and automatically surfaces the most likely card when you open the app. Everything runs locally on your device, works offline, and keeps your location history private. It's a small product focused on one thing: getting the right loyalty card on screen as fast as possible when you're standing at the checkout.

Cardnook

Never search for a loyalty card at checkout again.

Never search for a loyalty card at checkout again.