Family MultiSig
Shared control and accident protection for couples and families, so no single lost phone or seed can put savings at risk.
- 2-of-2, 2-of-3 & 3-of-4 family plans
- 416-day accident protection
- Hot or cold signer wallets
Self-custody first. Ownbit combines local encryption, QR offline signing, cross-chain MultiSig, and enterprise-style approval control in one mobile wallet.
TXcvs…9d5UeAny 2 of 3 keys can move funds
Designed around the real strengths of Ownbit: local key management, cross-chain MultiSig, and hardware-free cold storage.
Keep mnemonic and seed data encrypted locally, with standards-based derivation and stronger control on every device.
View details Air-gapped signing
Use a spare phone as an offline signer with QR-only data transfer.
View details Shared control
Coordinate approvals across personal, family, and team treasury flows.
View detailsOwnbit emphasizes self-custody: critical secrets stay encrypted on-device, key derivation follows industry standards, and sensitive signing can move fully offline.
How Ownbit Vault v2 protects your seedMnemonic and seed are stored with enhanced local encryption rather than uploaded for remote custody.
BIP32, BIP39, and BIP44 compatibility helps keep wallet generation and recovery predictable.
QR-based mnemonic backup adds a practical layer for secure migration and disaster recovery.
Turn a spare phone into a dedicated signer. Keep one device permanently offline, prepare transactions on a Watch Wallet, and exchange only QR data between them.
Keep private material on an air-gapped device that never needs to touch the network.
Mirror addresses on an online device to monitor balances and prepare transfers safely.
Scan unsigned data in, sign offline, and scan the signature back to broadcast.
Every spend needs both keys, so one stolen key can't move funds. Back up both seeds: without accident protection, losing a key and its backup blocks spending. 2-of-3 tolerates one lost key.
Coordinate long-term savings, inheritance planning, or shared funds with flexible threshold signing.
Layer roles, policies, and approval thresholds for operational wallets and treasury control.
Use 2-2 for personal risk reduction, x-3 for family coordination, and x-4+ or Enterprise MultiSig for operational treasury with roles, whitelists and limits.
Every market cycle since 2017, and not one security incident. This is what that trust rests on.
In operation since 2017 without a single security incident, with a loyal community that has grown with us.
Our core developers come from BITBILL and have been building Bitcoin wallets since 2013.
Since 5.0, the code that touches your keys in the iOS app, and the signing code both apps share, is public.
If Ownbit vanished tomorrow, your seed still restores in MetaMask, Trust Wallet, imToken and more.
Cold-wallet flows are available across the full list below. Coins marked in orange also support MultiSig. Tokens on those chains — ERC‑20, BEP‑20, TRC‑20, SPL, and XRP Ledger or Stellar issued assets — are covered by the same MultiSig.
Every new user gets a 7-day free trial. Membership expands wallet count, MultiSig modes, and enterprise controls.
| Everything included by plan | Membership Lv.1 | Membership Lv.2 | Membership Lv.3 |
|---|---|---|---|
| Max wallets | 3 | 5 | Unlimited |
| Secure cold wallet | ✓ | ✓ | ✓ |
| Offline signing | ✓ | ✓ | ✓ |
| 2-2 MultiSig (Personal use) | ✓ | ✓ | ✓ |
| x-3 MultiSig (Family use) | – | ✓ | ✓ |
| x-4+ MultiSig (Team use) | – | – | ✓ |
| Enterprise MultiSig | – | – | ✓ |
| MultiSig roles, security policy, and more | – | – | ✓ |
| Inheritable addresses | – | – | ✓ |
| Other advanced features | – | – | ✓ |
| Short wallet ID | – | – | ✓ |
| Price | $69 / year | $239 / year | $599 / year |
Note: when a MultiSig has several participants, every participant who signs needs a membership of the matching level.
For standard wallets, Ownbit provides self-service recovery guidance and standard-compatible addresses that work with most mainstream wallets. For MultiSig wallets, there is also a separate self-recovery guide for MultiSig assets.
Install the app, explore secure mode, set up MultiSig, or build a Cold Wallet flow for higher-value storage.
For iPhone and iPad users who want a polished mobile-first wallet experience.
For Android users who want MultiSig, Cold Wallet, and self-custody in one app.
Install the latest Android package directly from the official Ownbit file link.
SHA-256c45f61ce27ffd58e07d60fa5dade177a1ee7a69d1232795a16cb2a7be1d398c1
Ownbit is operated by BITTOOL PTE. LTD., a Singapore-based company focused on secure self-custody wallets. Operating since 2017 with no security incident, it is widely trusted across the crypto community. Reach us for support, partnerships, or Enterprise MultiSig onboarding.
Technical support, partnerships, and custom Enterprise MultiSig.
TelegramContact Telegram support for fast technical help.
X / TwitterFollow Twitter for major releases and important alerts.
GitHubClick here to view the Ownbit MultiSig source code.
Ownbit never holds your keys. Start with a 7-day free trial and keep full control from day one.