CardJar

Productivity

A free loyalty card wallet that stores your cards on your phone, works offline and never sends your data anywhere.

by Antoine Valton

👏0claps. Practice clap — real claps open at go-live.in 4h 29m

CardJar is a loyalty card app that lets you keep all your loyalty cards on your phone. It supports 509 loyalty schemes across 12 countries and works without any sign‑up, account or server. The app is free and does not transmit any personal data. The app shows a full‑brightness barcode instantly when you tap a card, with a plain white background that scans reliably even in dark mode. It supports many barcode formats (EAN‑13, UPC, Code 128, QR, Aztec, Data Matrix, etc.) and works without signal, Wi‑Fi or cellular connection, including in airplane mode. CardJar also syncs favourite cards to Wear OS watches, letting you scan from your wrist. It offers a lock with fingerprint, face or PIN, and lets you export cards to an encrypted file. The app is available for Android and iOS (no Apple Watch support) and is localized in several languages.

// launched on CLAPSTORM — a free Product Hunt alternative with a level weekly round · Productivity