Kryptos : Private Vault

Instant secure QR sharing.

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Kryptos is a zero-knowledge personal vault for your most sensitive documents - passports, ID cards, driver's licences, payment cards, API keys, and private notes. Everything is encrypted on your device with AES-GCM (256-bit). We never see your data, and we can't. ZERO-KNOWLEDGE BY DESIGN Your vault is sealed with AES-256-GCM using Apple's CryptoKit. The encryption key is stored in the iOS Keychain with kSecAttrAccessibleAfterFirstUnlockThisDeviceOnly - it never leaves your device. There is no Kryptos server holding your secrets. Even cloud backups upload only opaque, encrypted bytes. SMART DOCUMENT SCANNING Snap a passport, a driver's licence, an ID card, or a payment card. On-device VisionKit and Live Text extract the fields automatically. Camera frames never leave your iPhone. QR CODE CAPTURE AND REGENERATION Point the camera at any QR code to import its contents. Kryptos can regenerate the same QR from the saved entry whenever you need it. CROSS-DEVICE SHARING - FULLY OFFLINE Share any entry with someone else's Kryptos app by showing a QR code on screen. They scan it from their device and the entry imports instantly with the right category, title, and fields. Nothing touches the network - sharing happens completely offline, screen-to-screen. BEAUTIFUL HERO CARDS Each document type gets its own purpose-built card UI - passports, driver's licences, credit cards, IDs, notes, API keys, tax numbers - with a scanned attachment rendered as the card itself. EXPIRY REMINDERS Add an Expiry field to any entry and Kryptos sends a local notification 30 days, 7 days, and 1 day before it expires. All scheduled offline through local notifications - no cloud dependency. FACE ID AND TOUCH ID UNLOCK Lock your vault behind biometric authentication backed by the Secure Enclave. ENCRYPTED CLOUD BACKUP Auto-backup your encrypted vault to your choice of iCloud (private CloudKit database) or your own Google Drive: - Free: hidden Drive AppData folder - Pro: a visible "KryptosBackups" folder, easier to manage and copy off-device Neither iCloud nor Google Drive can decrypt the backup. Only your device can. MULTI-ACCOUNT ISOLATION Each signed-in account (Sign in with Apple or Google) gets its own fully isolated, separately encrypted vault. Switch accounts without entries leaking between them. PRICING - SIMPLE AND FAIR - Free: store up to 10 entries, full features, no ads. - Kryptos Pro: $1.99 one-time. Unlimited entries, visible Drive backup, priority support, and all future Pro features included. No subscriptions. No recurring fees. Pay once, own it forever. WHY KRYPTOS Most "secure" vaults are convenient because they hold your data on someone else's server. Kryptos picks the harder path: your data stays on your device, encrypted with a key only you control. The trade-off is that we can never reset your vault for you - but it also means no breach, leak, or subpoena exposes your secrets. PERMISSIONS WE REQUEST - Camera: to scan documents and QR codes (on-device only) - Face ID or Touch ID: to unlock your vault - Notifications: for expiry reminders - Internet: only for Sign in with Apple or Google, iCloud sync, Drive backup, and App Store purchase verification WHAT WE DO NOT DO - Run a server that stores your vault contents - Show ads or embed advertising SDKs - Sell, share, or analyse your data - Hold a copy of your encryption key Privacy policy: https://kryptos.faizalmzain.com/privacy Terms and FAQ: https://kryptos.faizalmzain.com/faq

Ratings & Reviews

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Security hardening, keystore migration, restore safety, privacy improvements, and vault UX enhancements.

Version 1.0.4

The developer, Mohd Faizal Mohd Zain, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    Mohd Faizal Mohd Zain
    Size
    1.7 MB
    Category
    Utilities
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    Languages
    English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 Faizal Zain
  • Developer Website
  • Privacy Policy

    • More by Mohd Faizal Mohd Zain

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