Coconut Vault: Bitcoin Signer

Offline Bitcoin Signer

Only for iPhone

$60.00 · Designed for iPhone. Not verified for macOS.

iPhone

Coconut Vault — Offline Bitcoin Signer for Complete Self-Custody Coconut Vault keeps your private keys secure in a fully air-gapped environment. Sign PSBTs (Partially Signed Bitcoin Transactions) without any internet connection. Designed for those who take Bitcoin security seriously, Coconut Vault uses hardware-level protection (HSM / Secure Enclave) to isolate your private keys from the OS and other apps. Key Features - QR-based PSBT signing (fully offline) - Hardware security module protection for private keys - Compatible with Coconut, Sparrow, BlueWallet, and Nunchuk watch-only wallets - Auto lock & memory zeroize when network is detected - Selectable operation modes (Signing-only / Secure storage) Your keys. Your vault. Your Bitcoin — Coconut Vault.

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[Fixed] * Bug where input was reset when entering certain words (e.g. "fancy") during mnemonic entry * Bug where the vault was locked when retrying biometric authentication within a short period * Bug where the change button was triggered during mode switching [Enhanced] * Improved automatic navigation to the next screen after single-sig wallet signing is complete

The developer, Nonce Lab Inc., 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

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

    Seller
    • Nonce Lab Inc.
    Size
    • 50.7 MB
    Category
    • Finance
    Compatibility
    Requires iOS 12.0 or later.
    • iPhone
      Requires iOS 12.0 or later.
    • iPod touch
      Requires iOS 12.0 or later.
    • Mac
      Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English and 2 more
    • English, Japanese, Korean
    Age Rating
    4+
    Copyright
    • © 2025 Copyright (c) Nonce Lab Inc.