Secure, simple, seamless

Bitkey WalletOfficial Bitcoin Self-Custody Solution

Bitkey Wallet, created by Block (formerly Square), is a modern Bitcoin self-custody wallet designed for users who want complete control over their digital assets. This wallet combines a secure mobile app, a hardware device, and a trusted recovery system to protect your Bitcoin without sacrificing ease of use.

Mobile App
Hardware
Cloud Backup

About Bitkey Wallet

Bitkey offers a unique 2-of-3 multi-signature security model that ensures your Bitcoin stays safe, even if your phone or hardware device is lost.

With strong authentication, cross-platform access, and user-friendly setup, Bitkey enables both beginners and advanced Bitcoin holders to manage and secure their assets confidently.

2/3

Multi-Signature Security

Three-layer protection ensures your Bitcoin is safe even if one component is compromised

Beginner Friendly

Simple onboarding and clear instructions make Bitcoin security accessible to everyone

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Complete Control

Non-custodial design means you have full ownership and control of your Bitcoin

Main Features

Discover the powerful features that make Bitkey the most secure and user-friendly Bitcoin wallet solution.

2-of-3 multi-signature security system

Three-layer protection with mobile app, hardware device, and cloud backup ensures your Bitcoin is always secure.

Hardware device + mobile app protection

Combines the convenience of a mobile app with the security of a dedicated hardware device.

Trusted cloud recovery options

Secure cloud backup allows you to recover your wallet even if you lose your phone or hardware device.

User-friendly onboarding and interface

Simple setup process and intuitive interface designed for both beginners and experienced users.

Full control over your Bitcoin (non-custodial)

You own your private keys and have complete control over your Bitcoin - no third-party custody.

Support by Block, a global financial technology company

Backed by the trusted team at Block (formerly Square), ensuring reliability and ongoing development.

How Bitkey Works

Bitkey splits security keys across three components: the mobile app, the hardware device, and Bitkey's cloud backup. To make transactions, two keys are required—ensuring that no single device compromise can affect your Bitcoin.

2-of-3 Multi-Signature Security

Any 2 of the 3 keys are required to authorize a transaction

Mobile App Key

Stored securely on your mobile device

Hardware Device Key

Physical device for ultimate security

Cloud Backup Key

Encrypted backup for recovery

Transaction Authorization

Requires any 2 keys to complete a Bitcoin transaction

Protection Against Loss

If you lose your phone or hardware device, you can still access your Bitcoin using the remaining key plus the cloud backup.

  • Phone lost? Use hardware + cloud
  • Hardware lost? Use phone + cloud

Protection Against Attacks

Even if one component is compromised, your Bitcoin remains secure because attackers would need access to multiple keys.

  • No single point of failure
  • Distributed security model

Frequently Asked Questions

Get answers to the most common questions about Bitkey Wallet and Bitcoin self-custody.

Yes, Bitkey combines a hardware device with a mobile app for enhanced security and control.

Bitkey is a fully non-custodial wallet, meaning only you control your Bitcoin.

Bitkey provides a secure recovery system using the cloud key and your remaining device, allowing safe account restoration.

No, Bitkey is built exclusively for Bitcoin to ensure maximum security and simplicity.

Yes, Bitkey is designed with simple onboarding, clear instructions, and strong safety mechanisms for all users.

Still have questions?

Our support team is here to help you understand Bitcoin self-custody and get started with Bitkey.