Bold Bitcoin Wallet APK

Bold Bitcoin Wallet

Overview

• BoldWallet represents a paradigm shift in Bitcoin self-custody as an open-source, next-generation wallet.

• It is specifically engineered to resolve traditional security trade-offs by removing single points of failure through advanced cryptographic methods, ensuring that users maintain absolute control over their assets without the vulnerabilities of conventional storage.

Core Security and Threshold Cryptography

• Implements a seedless setup utilizing the Threshold Signature Scheme (TSS) to protect private keys.

• Eliminates the risks associated with physical seed phrases, paper backups, and the maintenance of external hardware wallets.

• Supports distributed key generation across up to three mobile devices, requiring a 2-of-2 or 2-of-3 threshold to authorize any transaction.

• Ensures that no single device constitutes a point of failure, as a compromise of one device does not grant access to the funds.

Connectivity and Offline Operations

• Operates as a PSBT-Signer, maintaining full compatibility with established desktop wallets such as Sparrow and Electrum.

• Employs a peer-to-peer encrypted protocol to ensure secure and private communication between authorized devices.

• Facilitates data exchange via the decentralized Nostr protocol or through direct Local Wi-Fi and Hotspot connections.

• Enables the entire setup and transaction signing process to occur in a strictly offline environment, requiring no internet connectivity.

Privacy and Technical Infrastructure

• Features a fully open-source and verifiable codebase, allowing for community auditing and transparency.

• Prioritizes user privacy by offering integration with both public and self-hosted Mempool.space instances for blockchain data.

• Leverages existing mobile hardware to provide high-level security, removing the need for third-party proprietary hardware.

• Designed for advanced users who require a high-assurance, air-gapped signing experience without the overhead of traditional multi-signature setups.

FAQ

Q: How does Bold Wallet achieve a "seedless" setup without traditional backup phrases?

A: Traditional wallets require you to write down a seed phrase, which creates a single point of failure if someone finds it, or if it gets lost or destroyed. Bold Wallet replaces this outdated system entirely by utilizing a Threshold Signature Scheme to generate and manage keys. This means there is no master seed phrase to write down, protect, or lose, making your setup much more resilient to physical security breaches.

Q: What is the Threshold Signature Scheme used by Bold Wallet, and how does it work?

A: The Threshold Signature Scheme is an advanced cryptographic method that splits the ability to authorize transactions among multiple devices. Instead of a single private key living in one place, mathematical shares of the key are generated distributively across your devices. When you want to send Bitcoin, a set number of these devices must work together to sign the transaction, ensuring that no single device ever holds the complete private key.

Q: Can I use multiple mobile devices to secure my Bold Wallet, and what configurations are supported?

A: Yes, you can absolutely use multiple mobile devices to secure your assets. Bold Wallet supports distributed key generation across up to three mobile devices, allowing you to choose between a 2-of-2 or a 2-of-3 threshold setup. This flexibility lets you decide exactly how many of your devices must cooperate to approve a transaction before it can be broadcast to the network.

Version History

v4.0.4——17 Aug 2026

Secure your BTC with Bold Bitcoin Wallet, an open-source, seedless self-custody solution using TSS and offline PSBT signing. No seed phrases! Download the latest version of Bold Bitcoin Wallet to enjoy new features and updates immediately!

*4.0.4

Minor bug fixes and improvements. Install or update to the newest version to check it out!

*4.0.2

Minor bug fixes and improvements. Install or update to the newest version to check it out!

*4.0.1

Minor bug fixes and improvements. Install or update to the newest version to check it out!