The best alternatives to Unchained Vaults

Casa provides self-custody security for Bitcoin and stablecoins through multi-key vaults. Users hold their own private keys across multiple devices and locations, protecting against hacks, device failure, and accidental loss. Plans include Standard (3-key), Premium (5-key), and Private Client, with built-in inheritance planning and dedicated expert support.

Nunchuk is a Bitcoin multisig wallet platform that combines cutting-edge security with inheritance planning. It supports multi-signature wallets with extensive hardware compatibility, enabling users to eliminate single points of failure while maintaining full self-custody without KYC. Pioneering autonomous Bitcoin inheritance with on-chain timelocks designed to outlive the company itself.

Muun is a self-custodial Bitcoin and Lightning Network wallet that combines on-chain and off-chain payments into a single balance. It features a unique 2-of-2 multi-signature architecture with an Emergency Kit recovery system, mempool-based fee estimation to minimize costs, and support for both Lightning instant payments and on-chain transactions from one unified interface.

Safe is the leading smart contract multi-signature wallet infrastructure for secure self-custody, onchain treasury management, and organizational transactions. Used by DAOs, teams, and power users to manage crypto assets with distributed signing authority, eliminating single points of failure.

Serenity Shield provides blockchain-powered security solutions for digital assets, including the sAxess biometric cold wallet card and sBox decentralized seed phrase storage. Their hardware wallet uses fingerprint authentication for military-grade self-custody, supporting Bitcoin, Ethereum, and thousands of other tokens across 100+ blockchains.

Safe is the leading smart account infrastructure for secure self-custody, onchain treasury management, and organizational transactions. It offers a multisignature wallet that eliminates single points of failure by distributing access control across multiple owners, along with transaction simulation, spending limits, and role-based access.

Ownbit is a self-custody mobile wallet combining cross-chain MultiSig, QR offline signing, and enterprise-style approval control. It supports Bitcoin, Ethereum, BSC, Tron, Solana, and 15+ other blockchains for secure personal, family, and team treasury management.

Bitnovo is a regulated cryptocurrency platform offering a self-custodial wallet for individuals to buy, sell, swap, and store digital assets, along with business solutions for accepting crypto payments, gift card integrations, and crypto ATM services.

Ready (formerly Argent) is a smart contract wallet powered by account abstraction technology. It offers a full crypto banking alternative with deposit support across 6 currencies in 150 countries, a Mastercard debit card for spending USDC, staking and swapping features, and 9 years of innovation with zero hacks. Built with ERC-4337 account abstraction, it pioneered seedless, self-custodial wallet recovery through social recovery mechanisms.

BlueWallet is a free, open-source Bitcoin and Lightning Network wallet for iOS and Android. It supports watch-only wallets for hardware wallet integration, multisig vaults, Lightning payments, coin control, transaction batching, and plausible deniability — all while keeping private keys on-device.