ChipVault

Data Secured. On your Card. In your Pocket.

Your DESFire EV2/EV3 NFC Vault.

ChipVault is dedicated to managing your data on NXP DESFire EV2/EV3 cards. Turn a blank card into a hardware-backed personal vault for passwords, codes, recovery phrases, and notes — stored on the chip itself. No cloud, no servers, no accounts, no subscriptions.

WHAT YOU CAN STORE

Up to 8 categories per card. Choose from 15+ pre-canned options or roll your own:

- Financial
- Medical
- Travel
- Auto
- Insurance
- Tools
- Credentials
- Licenses
- Subscriptions
- Crypto Recovery
- Family
- Work
- Notes
- Wi-Fi & IoT
- Personal IDs

HOW IT WORKS

1. Set your ChipVault Master Password on first launch
2. Tap a blank NXP DESFire EV2/EV3 card to your phone
3. Pick up to 8 categories to provision
4. Store, retrieve, and adjust — one tap to read, one tap to write

SECURE BY DESIGN

- Industry-standard AES-256-GCM encryption at the chip level
- Per-category key separation enforced by the silicon
- Master-password-derived keys — the password never touches disk or network
- All cryptography handled by Android's built-in audited frameworks — no custom-rolled crypto, no third-party crypto libraries

SECURED BY DEFAULT

- Cards are personalized with your keys before any of your data is written
- Every personalized card carries an encrypted Self-Manifesto — the on-chip recovery record that lets the same master password rebuild the vault on a new phone with no backend involvement
- No analytics SDKs. No telemetry. No ad networks.
- Your data lives on the chip. Nothing is uploaded, nothing is synced to any cloud.

SECURED IN OPERATIONS

- Fresh cryptographic state for every NFC interaction — no long-lived sessions
- Write paths are confirmation-gated — no silent NFC writes, no surprise overwrites
- Backup via on-card cloning to a second card — never via cloud upload, never via file export
- Reset & Restructure recovery path for the rare allocator-stuck edge case


FEATURES

✓ Unlimited card enrollments
✓ Storage donut — visual byte map of every category
✓ Backup Card flow with per-trait carry-over toggles
✓ Edit card name, theme, icon, categories anytime — no NFC tap needed
✓ Add or delete categories on the fly with a single NFC tap
✓ Self-Manifesto — re-pair a card to a new phone with just your master password
✓ Reset to factory OR Reset & Restructure recovery


RECOVERY IS PHYSICAL, NOT DIGITAL

Get a new phone? Install ChipVault, tap any personalized card, enter your master password. The card's encrypted Self-Manifesto rebuilds the vault on the new device. Your data was on the chip all along; nothing was ever stored anywhere else, so nothing is lost.

Forget the master password? Data is unrecoverable. Deliberate. No backdoor.


TRIAL + ONE-TIME UNLOCK

20-day free trial with full functionality. Unlock forever for $6.99 — no subscriptions, no ads, no upsells.


COMPATIBLE CHIPS

NXP DESFire EV2, EV3. Common sizes: 2K, 4K, or 8K of EEPROM.


COMPATIBLE PHONES

Any Android 8.0+ device with NFC.

Also available on iOS.