Self-custody since 2017

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.

Pending payment−12,000 USDT≈ $12,000.00
To
TXcvs…9d5Ue
Network
TRON · TRC20
Memo
Supplier invoice
  • A
  • B
  • C
  • D
2 of 3 signatures collectedReady to broadcast
Total balance$186,420
Holdings
ABC

Any 2 of 3 keys can move funds

  • AAliceOwnerSignerApproved
  • BBobOwnerSignerApproved
  • CCarolSignerApproved
  • DDaveSignerSecurity Admin
  • EErinSigner
3 of 4 signatures collectedReady to broadcast
Non-custodialKeys never leave your device
No extra hardwareTurn a spare phone into a cold signer
Self-custody firstMnemonic and seed are stored with enhanced local encryption rather than uploaded for remote custody.
QR offline signingScan unsigned data in, sign offline, and scan the signature back to broadcast.
Cross-chain MultiSigLayer roles, policies, and approval thresholds for operational wallets and treasury control.
Trusted since 2017Operating since 2017 with zero security incidents, and broad trust across the crypto community.
Security by design

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.

How Ownbit Vault v2 protects your seed
Encrypted locally

Mnemonic and seed are stored with enhanced local encryption rather than uploaded for remote custody.

Standards compatible

BIP32, BIP39, and BIP44 compatibility helps keep wallet generation and recovery predictable.

Encrypted backup options

QR-based mnemonic backup adds a practical layer for secure migration and disaster recovery.

Cold wallet

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.

  1. 1
    Offline signer

    Keep private material on an air-gapped device that never needs to touch the network.

  2. 2
    Watch wallet pairing

    Mirror addresses on an online device to monitor balances and prepare transfers safely.

  3. 3
    Human-verifiable QR flow

    Scan unsigned data in, sign offline, and scan the signature back to broadcast.

Cold wallet
2-of-2
2-2 for personal use

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.

2-of-3
x-3 for family use

Coordinate long-term savings, inheritance planning, or shared funds with flexible threshold signing.

3-of-5
x-4+ for teams

Layer roles, policies, and approval thresholds for operational wallets and treasury control.

MultiSig

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 roles, whitelists and limits.

MultiSig for every context

Choose the MultiSig built for your situation

One security engine, three purpose-built experiences — protect a family, run a company treasury, or plan your crypto inheritance.

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
Explore Family MultiSig
Why Ownbit

Trusted since 2017. Zero security incidents.

Every market cycle since 2017, and not one security incident. This is what that trust rests on.

Zero security incidents2017

In operation since 2017 without a single security incident, with a loyal community that has grown with us.

Team roots2013

Our core developers come from BITBILL and have been building Bitcoin wallets since 2013.

Key-handling codeOpen source

Since 5.0, the code that touches your keys in the iOS app, and the signing code both apps share, is public.

Exit planNo lock-in

If Ownbit vanished tomorrow, your seed still restores in MetaMask, Trust Wallet, imToken and more.

Coverage

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. Tokens on those chains — ERC‑20, BEP‑20, TRC‑20, SPL, and XRP Ledger or Stellar issued assets — are covered by the same MultiSig.

Cold wallet supported MultiSig supported
Membership & pricing

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 controls.

Membership Lv.1

3 wallets
$69/ year
Secure cold wallet
Offline signing
2-2 MultiSig (Personal use)

Membership Lv.2

5 wallets
$239/ year
Secure cold wallet
Offline signing
x-3 MultiSig (Family use)
Everything included by plan Membership Lv.1Membership Lv.2Membership Lv.3
Max wallets35Unlimited
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.

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.

Get started

Download Ownbit for the setup 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 iOS

Download for Android

For Android users who want MultiSig, Cold Wallet, and self-custody in one app.

Download for Android

Download APK

Install the latest Android package directly from the official Ownbit file link.

SHA-256c45f61ce27ffd58e07d60fa5dade177a1ee7a69d1232795a16cb2a7be1d398c1

Download APK
Contact

Talk to the Ownbit team

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.

Your keys. Your rules. For decades.

Ownbit never holds your keys. Start with a 7-day free trial and keep full control from day one.