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.