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.