Live on Zcash testnet

The multisig nobody can see.

Share control of your crypto without putting your team on display. Every payment needs your co-signers' approval. The blockchain never learns who they are, what you hold, or who signed.

Create a free testnet wallet See how it works

Open sourceBuilt on ZcashWeb and iPhone

What your team sees · exampleApproved

12.50 ZECPay the audit firm

Recipient: u1k9…f3qa
Fee: 0.0001 ZEC
Policy: 2 of 3

ALBOCA2 of 3 signed

What the world sees

Sender
Recipient
Amount
Signers

1 shielded transaction

0co-signers anyone can see

7 secto sign and prove on an iPhone

0 bytesof your data we can read

5co-signed payments already on chain

The problem

Today you pick one: teamwork or privacy.

A shared wallet shows the world your members, your balance and every payment. A private wallet puts everything on one person's key. Neither is safe for a team.

No one acts alone

Set how many approvals a payment needs, like 2 of 3. No single person, phone or server can move your funds.

Nothing to trace

On chain, each payment looks like any other private Zcash transfer. No members, no rules, no balance.

Nobody in the middle

Your keys never leave your devices. Our server passes along encrypted messages it cannot open.

	Public multisig	Custody provider	Private single wallet	Zigs
Needs more than one approval	Yes	Yes	No	Yes
Hides who your co-signers are	No	Yes	Yes	Yes
Hides your balance and payments	No	Usually not	Yes	Yes
No company holds your keys	Yes	Often not	Yes	Yes

Follow the money

Every hop is public, until the money reaches Zigs.

Chain analysts trace transparent payments from wallet to wallet. Once funds arrive in a Zigs wallet, the trail goes cold. Example trail.

Visible: each hop, and the amount that arrivesInvisible: everything you do after that, and who you are

How it works

Set up in minutes. Nobody ever holds the whole key.

Everything happens on your team's own devices.

Invite your team
Pick your rule, like 2 of 3, and share one link. The link carries your wallet's secret, so our server never sees it.
Create the key together
Your devices build the wallet key as a group. Each person gets one piece. The full key never exists anywhere.
Review before you sign
Your device reads the payment itself and shows you exactly where the money goes. Then you approve.
Send it privately
Once enough people approve, the payment goes out as one ordinary private transaction.

Apps

Sign from your laptop or your phone.

Browser and iPhone members share the same wallet, so nobody waits for the person at their desk.

Web

Zigs for web

Set up wallets and propose payments
See your balance, synced on your own computer
Nothing to install

iPhone

Zigs for iPhone

Join with one tap from an invite link
Approve payments wherever you are
Signs in seconds, and your key stays on your phone

Security

Private from the world. Private from us too.

We built Zigs so that we cannot see your wallet, even if someone forces us to look.

Who	Can see	Can't see
The public	That a private payment happened	Your team, your rules, amounts, addresses
Our server	That a wallet exists, and when it is active	Names, balances, payments, keys
The blockchain data service	Your IP address	Which payments are yours. You can run your own.
Your co-signers	Your shared balance and payments	Your piece of the key

Proven cryptography, no shortcuts

FROST group signatures (ZIP 312): The Zcash standard for signing as a group. Each payment uses a fresh key, so nobody can link your payments.
Zcash private transactions: The same zero-knowledge proofs that protect every private Zcash payment. No new blockchain, no smart contracts.
End-to-end encryption: Your wallet's data is encrypted on your device before it reaches our server.

Zigs runs on testnet and has not been audited yet. Please do not use real funds.

Proof

Try to spot the team. You can't.

A group co-signed every payment below. Open one in the block explorer and look.

Roadmap

What comes next.

Now

Testnet

Web app for teams of any size
iPhone app for co-signers
Encrypted team data
Option to run your own node

Independent security audit
Launch on Zcash mainnet
Full iPhone and Android apps
Spending limits and saved contacts

Later

For companies

Pay suppliers in other currencies
Receive funds from any blockchain
Managed servers with uptime guarantees

FAQ

Questions, answered.

Can Zigs take or freeze my funds?

No. We never hold any piece of your key, and we cannot read your wallet's data. At worst our server could slow messages down, and you can run your own.

What if someone loses their phone?

Your team can still pay as long as enough members remain to meet your rule. Each member can back up their piece of the key. Replacing a member is on the roadmap.

Has Zigs been audited?

Not yet. An independent audit comes before mainnet.

Can my co-signers see our payments?

Yes. Everyone in the wallet can check the balance and every payment for themselves. Nobody outside can.

When can I use real ZEC?

After the audit, once Zcash activates the network upgrade that Zigs is built on.

Your team. Your rules. No audience.

Create a free testnet wallet with your team in about five minutes.

Create a free testnet wallet