CardKeep: Secure Card Wallet

CardKeep stores your payment card details in an encrypted, offline wallet. No account is required.

ANDROID AUTOFILL
Enable CardKeep in Android autofill settings. In supported apps and websites, choose a card and authenticate before its details are filled. Some forms do not support autofill; use copy and paste instead. Card data is encrypted using Android Keystore-backed storage.

• Scan card numbers and expiry dates on your device. Check every result before saving. Enter the cardholder name manually or choose a name saved on your device; enter the CVV yourself.
• Archive cards you no longer use and manage saved cardholder names. See exact expiry dates and days remaining.
• Choose classic, flat or back-details card styles. Brand logos stay in the same bottom-right position on both sides.
• Search cards, choose card colors, mark favorites and drag cards into your preferred order.
• Use biometric or device authentication, with an optional app PIN. The wallet locks again after time in the background.
• Copy card details with one tap. CardKeep clears its copied details after 45 seconds while the app is running.
• Choose dark or light mode and one of 11 languages.

OPTIONAL ENCRYPTED BACKUPS
Export a password-encrypted backup to a location you choose and import it later. Keep the backup password safe: it is required to open the file. Existing cards are kept and duplicate card numbers are skipped during import.

PRIVATE BY DESIGN
Card data is encrypted on your device. Camera recognition runs on-device. CardKeep does not operate a card-storage server and has no advertising or analytics. If you export a backup, a password-encrypted file is saved to your selected location.

FREE & PRO
Store up to 3 cards for free. A one-time Pro purchase unlocks unlimited cards. No subscription.

CardKeep stores card details; it does not process payments and is not affiliated with a bank or card network.

Recent changes:
• Refreshed light theme and consistent card logos on both sides.
• Archive cards and manage saved cardholder names.
• See exact expiry dates and days remaining.
• Improved back-details card display and stable number/code positions.
• Stronger app PIN protection and clearer secure-storage errors.