MultiSig and cold wallet for professionals, families, and teams.
Self-custody first. Ownbit combines local encryption, QR offline signing, cross-chain MultiSig, and enterprise-style approval control in one mobile wallet.



Three wallet modes, one clear security model
Designed around the real strengths of Ownbit: local key management, cross-chain MultiSig, and hardware-free cold storage.
Secure hot wallet
Keep mnemonic and seed data encrypted locally, with standards-based derivation and stronger control on every device.
View detailsCold wallet workflow
Use a spare phone as an offline signer with QR-only data transfer.
View detailsMultiSig governance
Coordinate approvals across personal, family, and team treasury flows.
View details
Secure self-custody
Ownbit emphasizes self-custody: critical secrets stay encrypted on-device, key derivation follows industry standards, and sensitive signing can move fully offline.
Mnemonic 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.
Private keys are derived for signing when required, reducing unnecessary exposure in normal use.
QR-based mnemonic backup adds a practical layer for secure migration and disaster recovery.
A true offline signing flow without extra hardware.
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.
From personal protection to family and enterprise approvals.
Use 2-2 for personal risk reduction, x-3 for family coordination, and x-4+ or Enterprise MultiSig for operational treasury with clearer governance.
Add a second device or signer so one mistake or one lost phone does not become a single point of failure.
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.
Broad chain and asset support for real-world use
Cold-wallet flows are available across the full list below. Coins marked in orange also support MultiSig.
Membership plans for personal, family, and team control
Every new user gets a 7-day free trial. Membership expands wallet count, MultiSig modes, and enterprise governance features.
Membership Lv.1
Membership Lv.2
Membership Lv.3
| 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 | $59 / year | $199 / year | $499 / year |
Recovery remains available even without membership
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.
Download Ownbit for the workflow you need
Install the app, explore secure mode, set up MultiSig, or build a Cold Wallet flow for higher-value storage.
Download for iOS
For iPhone and iPad users who want a polished mobile-first wallet experience.
Download for iOSDownload for Android
For Android users who want MultiSig, Cold Wallet, and self-custody in one app.
Download for AndroidDownload APK
Install the latest Android package directly from the official Ownbit file link.
Download APKTalk to the Ownbit team
Ownbit is operated by BITTOOL PTE. LTD., a Singapore-based company focused on secure self-custody wallets. Reach us for support, partnerships, or Enterprise MultiSig onboarding.
support@ownbit.io
Support, partnerships, and Enterprise MultiSig onboarding.
Telegram@ownbit
Join Telegram for quick support and community updates.
X / Twitter@OwnbitWallet
Follow Twitter for major releases and important alerts.
GitHubMultiSig source code
Click here to view the Ownbit MultiSig source code.