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Nunchuk

Mobile-first Bitcoin wallet focused on multisig and collaborative custody. Designed for shared vaults and inheritance planning.

Features​

  • Multisig vaults — Create and manage M-of-N setups on mobile
  • Collaborative custody — Share vaults with family or advisors
  • Inheritance planning — Built-in tools for inheritance workflows
  • Air-gapped signing — Support for hardware wallets and air-gapped signers
  • PSBT workflow — Partially Signed Bitcoin Transaction handling

Use Cases​

  • Family savings vaults
  • Business treasury management
  • Inheritance planning with time-locked releases
  • Collaborative custody with trusted third parties

Platform​

  • iOS and Android
  • Mobile-first design
  • Hardware wallet integration (Coldcard, Keystone, etc.)

Resources​