BITTARA
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BITCOIN ONLY
The Bitcoin vault your family can actually use.
Self-custody without the complexity. No hardware wallets. No seed phrases. Share access with your partner.
We never hold your keys
Bitcoin only. No altcoins.
Verifiable security model
Built for generational wealth

Three Layers. One Standard.

Account access, device authorization, and signing authority are deliberately separate systems.
1
Account Access
Passkey-based login. Modern biometrics. Gets you into the app.
2
Device Authorization
Trusted device enrollment. Confirms which devices can participate.
3
Signing Authority
Bitcoin signing keys. The only thing that can move your Bitcoin.
Logging in does not mean you can spend. These layers protect you even if one is compromised.

Built for Real Security

Every feature exists because self-custody demands it.
True Self-Custody
Your keys. Your Bitcoin. We never hold, access, or control your private keys.
Three-Layer Security
Account access, device authorization, and signing authority — deliberately separate.
Structured Shared Access
Invite signers, viewers, and recovery participants with defined permissions.
Biterra Guardian
AI-assisted security posture: device integrity, key health, recovery readiness, and transaction shield.
Passkey-First Access
Modern biometric login. Fast, secure, and separate from your signing keys.
Multisig Protection
Require multiple keys to move Bitcoin. No single point of failure.

Why Bittara?

Other platforms hold your keys, require hardware wallets, and charge premium prices for basic features.
Feature
Bittara
Others
Phone-only multisig
No hardware wallet required
Joint family accounts
Shared visibility & approval flows
Platform holds zero keys
Fully non-custodial. Always.
Passkey-first auth
No passwords. Phishing-resistant.
Role-based permissions
Owner, Signer, Viewer, Recovery & more
Scheduled vault audits
Automated key health checks
Inheritance included
On all paid tiers. No extra fees.
In-app education
Learn as you go. Not after you lose.
Compared to Casa, Nunchuk, and other leading Bitcoin custody platforms.
$0
Keys we hold
3
Security layers
7
Access roles
0
Seed phrases

Bitcoin for Families

The only Bitcoin vault with true joint accounts. Both partners see everything, approve together, and plan for the future.
How it works for a couple
Mike creates a 3-Key vault and invites Sarah
Each holds a key on their phone. A third key is stored safely offline.
Mike sends 0.5 BTC — Sarah gets a notification to approve.
Both can see the full history. A clear log shows who did what.
Start simple. Add roles when you need them.
Signer
Holds a key. Can see everything and approve transactions. For you and your partner.
Viewer
Can see balances and activity but cannot spend. Perfect for accountants or advisors.
Recovery
Holds a backup key for emergencies only. A trusted friend, family member, or safe deposit box.
Advanced roles available: Approver, Continuity, and Inheritance — for when you need them.

Choose Your Protection Level

Start free. Upgrade when your savings demand it.
Single-Key
Free
forever
One key, one device. The simplest way to start with self-custody.
1 signing key
Passkey account access
Trusted device enrollment
Recovery package option
Guardian: Device Integrity
Basic support
MOST POPULAR
3-Key Multisig
$14.99
/month
Two-of-three signing. Share access with a spouse, partner, or backup device.
3 signing keys (2-of-3)
Shared access for 3 participants
Recovery packages
Key rotation
Biterra Guardian (all 4 layers)
Priority support
Continuity planning
5-Key Multisig
$29.99
/month
Three-of-five signing. Maximum protection for families and businesses.
5 signing keys (3-of-5)
Shared access for 5+ participants
Advanced recovery
Key rotation & migration
Biterra Guardian (all 4 layers)
Dedicated support
Inheritance planning
Business controls
Audit logging

Recovery Without Hardware

Create encrypted recovery packages. Store them safely. Use them when needed.
1
Create
Generate an encrypted recovery package from within the app.
2
Store
Save as an encrypted QR code or file. Give to a trusted person or store securely.
3
Recover
When needed, import the package on a new device to restore signing authority.

Built for How You Live

Whether you're saving alone or planning for generations.
Individual Saver
Simple single-key or multisig for personal savings.
Couples
Shared 3-key access. Both partners hold signing authority.
Families
5-key protection with roles for parents, children, and trustees.
Businesses
Multi-party signing for treasuries and operational funds.

Biterra Guardian

AI-assisted security scoring across four layers of vault protection.
Guardian Security Score
A
92 / 100 — Excellent
Device Integrity
100
Key Health
87
Recovery Readiness
78
Transaction Shield
95
Recovery strength is weaker than expected: signer 2 has not been verified in 143 days. Consider requesting a verification proof.
Your Bitcoin. Your Family. Your Future.
Start free. No hardware wallet needed. No seed phrases. Upgrade to multisig when your savings demand it.
Free forever for single-key. 3-Key multisig from $14.99/month.
BITTARA
Bitcoin-only self-custody.
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Bittara. All rights reserved.
Bittara is a self-custody platform. We do not hold, control, or have access to your Bitcoin.