Privacy, with care.
Updated September 11, 2026
QuanCard is a local-first collection vault. This note describes this website and the app’s current development direction.
This website
This website does not accept card details, account numbers, vault files, or passwords. Google Analytics helps us understand visits to this public website. We disable advertising features and do not send card information, email addresses, verification codes, or reservation numbers to Google. A theme preference is saved in your browser’s local storage if you change it; you can remove it by clearing site data.
Your reservation
When you join the waitlist, Cloudflare processes your email address to send a verification code and protect the form with Turnstile. After verification, we store your normalized email, preferred language, timestamps, and unique reservation number in Cloudflare D1, so we can notify you at launch and retrieve your number. Verification codes expire after 10 minutes; incomplete verification records are removed about a day after expiry. Verified reservations remain until you request removal through our contact address. This is separate from your local app collection, and it is not an app account. Administrators use a secure session cookie, valid for up to eight hours. We do not sell the list.
Hosting and network requests
Cloudflare hosts the static site and processes network information needed to serve and protect it, which may include IP addresses, request times, and browser information. Hosting logs and retention follow Cloudflare’s policies. We do not claim that browsing generates no server data.
Website analytics
Google processes page visits, device/browser information and network data under its own policies. Google Analytics may set first-party cookies. Analytics loads automatically on public pages, without a preference prompt. We continue to respect a previously saved refusal and Global Privacy Control. Analytics is separate from app data and is not loaded on administrator pages.
Your collection in the app
The app is designed to encrypt card details, bank account information, notes, and imported photos before storing them on the device. Local use does not require a QuanCard account. Sensitive card details are hidden by default and can be revealed with authorization. Backups are password-protected and encrypted.
Cloud sync and release status
QuanCard has not been publicly released. iCloud synchronization is awaiting real-device and cloud validation; self-hosted sync is not available. This website does not receive or decrypt your collection. The final app privacy policy and store disclosures will be published before public distribution.
Contact without secrets
Never include card numbers, CVCs, account numbers, recovery codes, or backup passwords in a support request. For contact details and safe reporting guidance, see Contact & support.