Splendor Vault: Cold Wallet

Splendor Labs

About this app

Splendor Vault turns your Android device into an air-gapped cold wallet - keeping your private keys completely offline, forever.

Unlike hot wallets that stay connected to the internet, Splendor Vault never touches a network. Your keys are generated locally using device entropy, stored only on your device, and protected by a BIP-39 recovery phrase. They never leave.

HOW IT WORKS

Splendor Vault works alongside any compatible wallet app. When you need to sign a transaction, your online wallet generates an unsigned request. You scan it as a QR code with your Splendor Vault device, review and approve the transaction, then scan the signed QR code back - all without a single byte of data crossing the internet.

No Wi-Fi. No Bluetooth. No USB. Just QR codes and your camera.

KEY FEATURES

- Air-gapped signing: transactions are approved offline and communicated only via QR codes
- Local key generation: private keys are created on-device using secure entropy and never transmitted
- BIP-39 recovery phrase: back up and restore your wallet with a standard seed phrase or private key
- No data collected: zero telemetry, no analytics, no third-party sharing
- Compatible: works with any wallet app that supports QR-based offline signing


WHO IT'S FOR

Splendor Vault is built for anyone who wants serious protection for their crypto holdings - from long-term holders who never touch their assets, to developers and security researchers who need a reliable offline signing solution.

If you hold Bitcoin, Ethereum, or any other asset worth protecting, a cold wallet is not optional. It is the standard.

PRIVACY & SECURITY

Splendor Vault collects no data and shares nothing with third parties. All key material is generated and stored locally. Communication between your signing device and your wallet app happens exclusively through QR codes scanned by your camera.

Your keys. Your device. Your control.

What’s new

• Review transactions with clearer chain details, including formatted chain ID and native currency symbols where available.
• See ERC-20 token transfers decoded on the review screen instead of raw calldata only.
• Local token registry support for richer token labeling on supported networks.