Coconut Vault: Bitcoin Signer
Nonce Lab Inc. Finance
When you disconnect, true freedom and security begin. Your Bitcoin, your vault.
- Downloads
- 303+
- on Google Play
- Price
- $59.99
- No in-app purchases
- Updated
- Oct 6
- 2026 · v3.3.0
Screenshots
About Coconut Vault: Bitcoin Signer
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.
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.
What’s new
Version 3.3.0 · Updated October 6, 2026
### Fixes 1. Applied NFKD normalization to passphrases when creating wallets. 2. When restoring a wallet, users are asked whether to apply NFKD if normalizing the passphrase changes the original string.
Alternatives to Coconut Vault: Bitcoin Signer
Looking for apps like Coconut Vault: Bitcoin Signer? Here are 3 similar Android apps on Google Play. The highest rated is Edge - Bitcoin & Crypto Wallet (4.7/5), and all 3 are free to download.
| App | Rating | Price | Installs | Last updated | Compare |
|---|---|---|---|---|---|
| Coconut Vault: Bitcoin Signer | – | $59.99 | 100+ | Oct 6, 2026 | |
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| AscendEX: Buy & Sell Crypto | 3.6 / 5 | Free | 10,000+ | Apr 28, 2021 | Compare |
| Edge - Bitcoin & Crypto Wallet | 4.7 / 5 | Free | 500,000+ | – | Compare |