Wallet & Vault Technologies

Secure, Simple, and Self-Custody.

Turn your spare phone into an impenetrable Cold Wallet. Protect your crypto assets by storing your private keys completely offline.

The Wall Free Finance Foundation brings you an zero-connection security solution that puts you back in the driver’s seat.

Wallet Interface
Primary wallet interface mockup with carded glass background.
Wallet Interface

Clear Business Description

About Wall Free Finance

Wall Free Finance is a security-focused blockchain development project dedicated to democratizing self-custody. We provide an open-source, air-gapped security solution that transforms commoditized hardware (spare smartphones) into enterprise-grade cold storage.

Problem & Solution

The Problem & Solution

Users are often forced to pick between convenient but insecure hot wallets or secure yet expensive and complex proprietary hardware. WallFree removes that barrier to safe self-custody with a simple, open Two-Device Approach.

Two-Device Approach

Separation of Secrets and Connectivity

By isolating signing from connectivity, WallFree keeps private keys fully offline while still delivering everyday usability.

The Vault (Offline)

Installed on a spare smartphone that never touches the internet (no WiFi, Bluetooth, or cellular). It holds private keys and signs transactions via QR codes.

The Wallet (Online)

Installed on your daily driver. It prepares and broadcasts transactions but stays blind to your secrets.

Industry Context

Built for Web3 Security

Operating within the Cryptocurrency and Web3 Security sector, we target both crypto-natives requiring advanced features (like BIP85 and true entropy) and newcomers seeking a user-friendly, low-cost alternative to hardware wallets.

  • Crypto-natives who want advanced capabilities like BIP85 and true entropy.
  • Newcomers who need a user-friendly, affordable path to secure self-custody.

The WallFree Ecosystem

Products & Services

The WallFree ecosystem is an open-source suite of Web3 wallet technology that delivers Zero-Connection security.

Open-source, zero-connection wallet stack

We are building an open source suite of Web3 wallet technology that enables Zero-Connection security.

Core Product

WallFree Vault App

Dedicated offline application for key generation and transaction signing.

  • True Entropy via physical dice rolls/coin flips.
  • BIP39 Passphrase support for plausible deniability.
  • Offline Secret Storage.

Core Product

WallFree Wallet App

Companion online application that bridges to the blockchain.

  • MetaMask integration for DeFi access.
  • Segwit for optimized Bitcoin transactions.

Core Product

Social Recovery Protocol

Proprietary recovery mechanism using trusted contacts without exposing private keys.

Status

Status: Beta.

Launch Timeline

Launch Timeline: Apple App Store and Google Play Store by end of December, 2025.

Availability

Availability: Source code available on GitHub; beta versions accessible for testing ahead of store launch.

The Concept

More Than An Ordinary Hardware Wallet

Security shouldn’t require expensive proprietary hardware. WallFree utilizes a Two-Device Approach to separate your keys from the internet, increasing both security and usability.

📱 Device 1

The WallFree Vault

The Fortress. This app is installed on a dedicated, spare smartphone. It remains completely offline—zero-connection from WiFi, Bluetooth, and cellular data.

  • Role: Generates keys, signs transactions, and stores secrets.
  • Connectivity: None. It never touches the internet.

📲 Device 2

The WallFree Wallet

The Bridge. This is the companion application installed on your everyday smartphone.

  • Role: Prepares transactions and broadcasts them to the blockchain.
  • Security: It is “blind”—it is never aware of your private keys or secrets.

How It Works

Zero-Connection Security in 3 Steps

1

Initiate

Create a transaction on your WallFree Wallet (Online Phone). It generates a QR code.

2

Sign

Scan the QR code with your WallFree Vault (Offline Phone). The Vault signs the transaction securely offline and displays a signed QR code.

3

Broadcast

Scan the signed QR code back with your WallFree Wallet. The transaction is broadcast without your private keys ever leaving the offline device.

Features

Enterprise-Grade Features

We combine ease of use with the rigorous technical standards required by crypto veterans.

🛡️ Maximum Security

Offline-first protection that eliminates digital attack vectors.

  • Offline Secret Storage: Your keys are encrypted and stored on a device that physically cannot reach the internet.
  • Offline Transaction Signing: Sign transactions via QR codes, ensuring zero digital attack vectors.
  • Social Recovery: Regain access to your funds through trusted contacts if you lose your device.
  • BIP39 Passphrase: Add an extra layer of protection on top of your seed phrase (plausible deniability).

🎲 True Entropy

Generate and manage keys with verifiable randomness.

  • Coin Flip & Dice Roll: Create your own wallet entropy physically by flipping coins or rolling dice.
  • BIP85 Child Entropy: Deterministically derive multiple seeds from a single master secret for better management.

⚡ Ecosystem Compatibility

Use WallFree with the tools and chains you already love.

  • MetaMask Support: Seamlessly interact with DeFi and Web3 applications.
  • Segwit Support: Enjoy faster transaction times and lower fees on the Bitcoin network.
  • Fully Open Source: Don’t trust—verify. Our code is open for anyone to audit, ensuring there are no backdoors.