CardJar vs Catima: Which Private Loyalty-Card Wallet Fits You?
CardJar and Catima both keep loyalty cards on the device and work offline. CardJar is the stronger fit for users who want a curated, account-free experience across Android, iPhone and iPad, plus a focused Wear OS implementation. Catima is the stronger fit for Android users who prioritize open-source software, broad customization and a GPL-licensed codebase.
Start with the operating system
The first decision is unusually simple.
- Need iPhone or iPad support? CardJar is available through Apple’s App Store.
- Want an Android-first open-source wallet? Catima is developed publicly under GPLv3+.
- Need Wear OS? Both publish Wear OS support, but their surrounding workflows differ.
That platform decision narrows the comparison before feature detail becomes necessary.
How CardJar approaches the card
CardJar is designed around recognition and quick retrieval. Scan a known card and the app can assign its retailer name, color and membership-number label from a catalogue compiled into the application.
The published coverage currently contains 508 schemes across 12 countries. Unknown cards remain usable and can be named manually.
CardJar also reads screenshots in bulk. Barcode and surrounding-text recognition happen on the phone, which makes the app particularly relevant to former Stocard users with a saved photo album. At checkout, CardJar redraws supported barcodes on a white plate and increases screen brightness.
How Catima approaches the card
Catima describes itself as libre, GPL-licensed card-management software for Android. Its public repository lists offline storage, manual and camera-based card entry, import from several files or other wallets, customization, backups, sharing and a broad barcode list.
Catima supports PDF417 among its displayed formats. CardJar currently scans and stores PDF417 but does not redraw it. That is a concrete reason to choose Catima when PDF417 display is required.
Catima’s public project also includes a Wear OS companion app and Gadgetbridge support. Users who value inspectable source code, community development and Android customization may prefer that model.
Where CardJar is deliberately different
CardJar invests heavily in a smaller set of product decisions:
- no account or sign-up surface;
- curated retailer recognition stored entirely in the app;
- bulk migration from loyalty-card screenshots;
- documented pixel-aligned barcode rendering;
- a one-passphrase encrypted export file;
- direct sharing in which the recipient receives an independent copy;
- iPhone and iPad support alongside Android;
- favorite cards stored on a Wear OS watch.
The product’s privacy page itemizes outbound behavior rather than relying on a general “private” label.
A buyer-oriented comparison
iPhone and iPad
- CardJar: Supported
- Catima: Android-focused
Open-source codebase
- CardJar: No public open-source claim
- Catima: GPLv3+ repository
Automatic retailer recognition
- CardJar: 508 curated schemes in 12 countries
- Catima: Customization and manual organization emphasized
Stocard screenshots
- CardJar: Bulk on-device screenshot import
- Catima: File and wallet imports documented
PDF417 display
- CardJar: Stored but not drawn currently
- Catima: Listed as supported
Wear OS
- CardJar: Favorites, dedicated app and tile
- Catima: Wear OS companion support
Choose based on the non-negotiable requirement
Choose CardJar when cross-platform phone support, curated retailer identification, bulk screenshot migration and the published no-account architecture matter most.
Choose Catima when open-source Android software, PDF417 display or community-driven configurability is the central requirement.
Both are credible privacy-oriented alternatives to a loyalty wallet built around advertising or payments. The better choice depends on whether the user wants CardJar’s curated cross-platform product or Catima’s open Android toolkit.
Review the shipping CardJar interface at cardjar.app and the current Catima repository before installing, because both products continue to change.
Frequently asked questions
Are CardJar and Catima both offline?
Both products publish offline operation.
Which product supports iPhone?
CardJar. Catima’s public project is Android-focused.
Which one is open source?
Catima is GPL-licensed. CardJar does not publish an open-source claim.
Which one supports Wear OS?
Both currently publish Wear OS support.
Verified sources
