Meet Arca: The Dollar wallet from Constellation Network

For the past year, the Constellation Network team has been quietly building a product that's a little different from anything we've shipped before. It isn't infrastructure for governments, validators, or enterprise data. It's an app, and a simple one, built for anyone with a phone.

It's called Arca, and it's a dollar wallet that doesn't need a bank.

Most of the world has a phone, but the ability to hold and move dollars is locked behind banking systems that don't reach everyone. Arca opens that door.

What Arca is, in one sentence

Arca is a dollar wallet app that lets you hold dollars, send them instantly, and save on your terms, all from your phone, all yours. Three jobs, one app, and no bank required.

For the technically inclined: under the hood, Arca is a non-custodial stablecoin wallet. On the surface, it's just a dollar wallet on your phone, and most users never need to think in any other terms. The rest of this post is written from the surface.

What Arca actually does

Open the app and your balance is in US dollars, not a stand-in or a token you have to convert. Just dollars, the unit you'd quote a price in.

From there, four things you can do.

Add dollars. Top up from a bank, a card, or local mobile money. If you're sending in your local currency, the conversion happens automatically. Setup takes about 30 seconds and there's no minimum deposit.

Send dollars. Send to anyone, anywhere, and it arrives in seconds rather than the one to five business days a bank wire takes. Sending fees are 0.5%, not the $15 to $45 a wire costs.

Save dollars. Move money into Arca Simplefi whenever you want and pull it back out the same way, with no lock-up period, no paperwork, and no branch visits.

Use Arca Apps. The Arca Apps directory is a growing catalog of services that work with the wallet, including merchant tools, payments services, and partner integrations. One balance, many uses.

The problem this solves

This isn't a marginal product for a marginal audience. The numbers tell the story.

• 1.3 billion adults worldwide have no financial account at all (World Bank, Global Findex 2025).
• 6.49% average fee to send money across borders (World Bank, Remittance Prices Q1 2025).
• 54% of Argentina's peso lost value overnight in December 2023 (CNN).
• $93 billion sat frozen in Lebanese bank accounts after the 2019 crisis (The National).
• $179 trillion in cross-border payments flow through slow, expensive rails every year (McKinsey).

For a deeper look at how phones became the financial system most of the world actually uses, the team wrote about it here: Your phone is already a bank. You just don't know it yet.

What makes it different

Here's the table from the Arca website, and it's worth reading slowly.

Feature	Banks	Arca
Minimum deposit	$500+	$0
Send fees	$15 to $45 wire	0.5%
Savings options	Limited	Flexible
Setup time	Days plus a branch	30 seconds
Transfer speed	1 to 5 business days	Seconds
Who controls your wallet	Your provider	You

That last row is the one that matters most. Your wallet is yours, which means Arca cannot move your funds and cannot lock you out. You hold your own keys.

You can leave any time, with everything

This is the part most apps don't put in writing.

Your Arca wallet belongs to you, not to Arca. If you ever decide you'd rather use a different app, you can export your account and take everything with you, with no transfer requests, no waiting periods, and no permission needed. That isn't a marketing line, it's a structural property of how the app is built.

Three steps to get started

The full sign-up flow, as it appears in the app:

1. Sign up. Download the app and sign in with Google, Apple, or email. Your wallet is ready.
2. Add dollars. Use a bank, card, or mobile money. Local currency converts automatically.
3. Save, send, spend. Hold dollars, send them in seconds, or move money into Simplefi.

Thirty seconds to a working dollar wallet, with no paperwork or branch visit.

Why a Constellation Network team built this

The Constellation community has asked the fair question: why is this the app we're building?

Because the gap is enormous and we're well positioned to close it. Constellation Network has spent years building the kind of trusted infrastructure that consumer products like Arca need underneath them. Putting that capability into a product anyone can pick up and use is how an ecosystem gets distribution.

Arca is also written in regulatory plain English. The GENIUS Act passed in 2025 and reshaped the legal foundation for digital dollars in the United States. The team has written about what changed and what it means for people who hold dollars in apps like this one. It's worth a read if you're tracking the regulatory side.

If you want the deeper background on the team, the mission, and how Arca fits into Constellation Network's broader work, the About page is the right starting point.

Built for the people who need it most

The audience this product is built for is the rest of the world. People who already use their phones for money through M-Pesa, GCash, Pix, UPI, and who would benefit from being able to hold their balance in dollars instead of in a currency that loses value while they sleep.

It's the Filipino worker abroad sending money home, who the team wrote about in What OFWs wish they knew about sending money home.

It's the family in Buenos Aires watching the peso slide.

It's the small business owner in Lagos who can't afford the wire fee but needs to pay a supplier overseas tomorrow.

For all of them, the value of Arca isn't an abstract argument about financial systems. It's the specific moment they realize they can send $200 home for $1 instead of $13, and it arrives in two seconds instead of two days.

Constellation Network has spent years building infrastructure for the next era of trusted systems, and Arca is the first product the team has shipped that anyone, anywhere, can pick up and use without knowing any of that. The infrastructure should disappear into the experience, and that is the point.

The wallet your family will actually use is the one that feels like the apps they already know. We think Arca is that wallet. We'd love your help getting it into their hands.

Checkout Arca →

Frequently asked questions

Is Arca a bank? No, Arca is a wallet app. You hold your own dollars and your own keys, and no bank account is required to use it.

What does it cost to use? Downloading the app is free. Sending dollars costs 0.5%, and saving has no fees and no minimum balance.

How fast are transfers? Seconds, not days.

Can I take my money out any time? Yes. There's no lock-up on Simplefi, no waiting period, and no transfer requests required. Your wallet is yours.

Which countries does Arca work in? Arca is designed to work everywhere. One app, one balance, across borders.

Where can I learn more? The Learn section walks through every feature in plain language. The Docs site is the reference if you want to go deeper. The Arca blog is where the team writes about the product, the market, and the people Arca is built for.