Cardfold
Android app
Your loyalty cards live on your phone. Nowhere else.
Cardfold is a wallet for loyalty and reward cards that lives on your phone. No accounts, no sign-up, no cloud, no analytics: the cards sit in local storage and leave the device only when you export a backup yourself.
- Android
- React Native
- Expo
- TypeScript
- MMKV
See it move
- 01demo
Cardfold in 38 secondsAll cards and search, a card at the till, the card editor, themes, and the offline backup — a real screen recording of the release build.
What it does
Scan it once
Point the camera at the barcode on the back of the card and the number and format fill themselves in. Typed by hand, the length and check digit are checked.
Bright at the till
Tap a card and the code opens large while the screen turns itself up to full brightness, so the scanner reads it first time.
Thirty cards, still the right one
Categories you can rename or add, search by shop or by number, filter chips above the list, and a long press to drag a card to the top.
Dates that remind you
Give a card a last day and it shows as a badge, with a reminder a week before — scheduled by the phone itself, no push server.
The shop you're standing in
Pin a card to a place on the map and it comes forward when you are there. Only a point is stored, on this device.
Every card looks like itself
Twelve colours or any photo as a cover. The text colour is computed from contrast, so the name stays readable on either.
A backup that is yours
Every card and cover in one JSON file, through the system share sheet. Import says how many cards it holds before it replaces anything.
Lock, widget, three languages
Fingerprint, face or PIN before the cards open, a home-screen widget, and English, Ukrainian and Russian in light and dark.
Honest about permissions
The camera only scans, location is used only while the list is open, and the map is the only thing fetched. No ads, no trackers.
Screenshots
Every card in one placeSections you name yourself, and search that finds a card by shop or by number. 
Show it at the tillOpen a card and the screen turns itself up, so the scanner reads it first time. 
Dates that remind youGroup cards by category and put a last day on one — the reminder comes early. 
The shop you're inPin a card to a place on the map. Only a point is kept, on your phone. 
Colour, cover, numberThe camera fills in the number and format; 12 colours or your own photo on top. 
Barcodes and QRCode 128, 39 and 93, EAN, UPC, ITF-14, Codabar and QR — 10 formats drawn on screen. 
Five themes, light and darkTen combinations, every text pair checked against WCAG AA contrast. 
Yours, and offlineNo accounts, no cloud, no analytics. Cards leave the phone only as a backup.
