The Best Money System Nobody Can Use!
Key takeaways: Digital dollars move $33 trillion a year, settle in seconds, and cost almost nothing. But the wallets built on top of them are hostile to normal people. Seed phrases, gas fees, network selection, and unlimited token approvals create a UX gap that locks out billions. The product that closes this gap will look like a banking app on top, with digital dollar rails underneath.
We’ve been building a dollar wallet for the past year. And the more time we spend in this space, the more convinced we are of two things that shouldn’t both be true at the same time.
First: the technology behind digital dollars is extraordinary. Sending money anywhere on Earth in seconds, for almost nothing, with no bank in the middle. That’s real. It works. It’s not theoretical.
Second: almost nobody can actually use it.
Not because they’re not smart enough. Because the products built on top of this technology were designed by engineers, for engineers. And the rest of the world got left with interfaces that feel like filing your own taxes in a foreign language.
This is the gap we think about every day.
What digital dollars actually solved
Before we get into what’s broken, it’s worth being clear about what works.
Digital dollars settle in seconds. Not hours. Not “1-3 business days.” Seconds. A person in Manila can receive money from a relative in Dubai before the sender puts their phone down.
The fees are a fraction of what traditional systems charge. The global average cost to send money across borders is still 6.49%, according to the World Bank. Banks charge up to 14.55%. Wire transfers cost $35-50 each. Digital dollar transfers cost cents.
And the numbers tell the story. Transaction volume for digital dollars hit $33 trillion in 2025, up 72% from the year before. That’s roughly double what Visa processed in the same period. The total market crossed $300 billion in early 2026. More than 13% of financial institutions now use them, and over half of those who don’t say they plan to start within a year.
This isn’t a niche. It’s a parallel financial system growing faster than anything we’ve seen in decades.
So why can’t your mom use it?
Horror story #1: The 12 words that stand between you and your money
Here’s how most wallets work today. You sign up. The app generates 12 random words. It tells you to write them down on paper, store them somewhere safe, and never lose them.
That’s it. That’s your entire security model. Twelve words on a sticky note.
If you lose those words, you lose your money. Not “call customer support and reset your password” lose. Gone forever lose. No recovery. No appeals process. No one to call.
Surveys show that 20-25% of crypto users have lost access to their funds at least once because of seed phrase issues. One in four. And these are the people who made it past the signup screen.
I watched my cofounder try to explain seed phrases to his parents over dinner once. His dad, a retired accountant, looked at him and said: “So it’s like a password, but if I forget it, I lose everything, and nobody can help me?” Yes. Exactly that.
No bank works this way. No payment app works this way. But somehow, an industry processing trillions of dollars decided this was acceptable.
Horror story #2: You need to buy one currency to send another
Imagine walking into a post office to mail a letter. But before you can buy a stamp, they tell you that you first need to acquire a special postal token, and that the price of this token changes every 30 seconds, and sometimes during busy hours the token costs more than the letter itself.
That’s what gas fees feel like to a normal person.
To send digital dollars on most wallets, you need to hold a completely separate currency to pay the network fee. You can’t pay the fee in dollars. You need to go to an exchange, buy the fee currency, transfer it to your wallet (making sure you select the right network, which we’ll get to), and then you can send your dollars.
And the fee changes constantly. During network congestion, what costs $0.50 on a quiet Tuesday might cost $15 on a busy Thursday. Users report fees exceeding the value of the transaction itself.
This is like needing to buy gas station tokens before you can fill up your car. No one would accept this in any other context. But in the digital dollar world, it’s Tuesday.
Horror story #3: The wrong network problem
This one is genuinely painful. And it happens more than people think.
Digital dollars exist on multiple networks. Think of it like having dollars in different vaults that can’t talk to each other. The dollars look the same. They have the same name. They’re worth the same amount. But if you send dollars from one network to a wallet on a different network, they can vanish.
Not stolen. Not hacked. Just… gone. Sitting in a place you can’t reach because you picked the wrong option from a dropdown menu.
Some wallets and exchanges will help you recover. Some won’t. Coinbase is strict about this. Others charge recovery fees. And the experience of watching your money disappear because you selected “Ethereum” instead of “Base” from a list of nearly identical options is the kind of thing that makes people swear off the entire technology.
The wallets that present this choice to users without clear warnings, without default selections, without safety nets, are putting the burden of infrastructure knowledge on people who just want to send dollars.
Horror story #4: The permission you didn’t know you gave
This one is more subtle, and that’s what makes it dangerous.
To use most apps in the digital dollar world, you need to give them permission to access your funds. The wallet pops up a confirmation. You click approve. Sounds normal.
But here’s what most people don’t realize: many of these apps request unlimited permission. Not “$50 for this transaction.” Unlimited. Forever. The approval stays active on the network even after you close the app, delete your account, or forget the service existed.
Months later, if that app gets compromised, or if it was malicious from the start, someone can drain your entire balance using the permission you granted back when you clicked “approve” without reading the fine print.
Over $200 million was lost to approval-based attacks in 2024 and 2025 alone. CertiK documented 47 separate exploits in a single quarter, averaging $4.2 million each.
The user did nothing wrong. They used an app the way they use every other app. But this technology punishes normal behavior.
Two worlds, both broken in different ways
So we have two financial systems, and neither one works for everyone.
| Traditional banks | Digital dollars | |
|---|---|---|
| Interface | Great. Apps make sense. | Hostile. Built for engineers. |
| Transfer speed | 1-5 business days | Seconds |
| Transfer cost | $15-50 per wire | Cents |
| Access | Requires ID, branch, minimums | Anyone with a phone |
| Security model | Password + customer support | 12-word seed phrase, no recovery |
| Fee currency | Same as your money | Separate token required |
| Global reach | 1.3B adults excluded | Available everywhere |
Traditional banking has great interfaces. Mobile apps that make sense. Customer support you can call. Password resets that work. But the rails underneath are slow and expensive. Sending money internationally takes days and costs a fortune. Opening a dollar account requires paperwork, minimums, and often a physical branch visit. And 1.3 billion adults worldwide still can’t access the system at all.
Digital dollars have incredible rails. Fast, cheap, global, available to anyone with a phone. But the products built on top are hostile to normal people. Seed phrases. Gas fees. Network selection. Unlimited token approvals. Every step is a trap door.
The technology solved the money problem. Nobody solved the experience problem.
What the solution actually looks like
We don’t think the answer is “make crypto easier.” We’ve watched that approach for years. It usually means adding a tooltip to a confusing screen, or writing a help article that explains gas fees in friendlier language. That’s lipstick on a pig.
The answer is to start from the other direction entirely. Start with what people already understand. Banking apps. Payment apps. The interfaces 3 billion people already use every day. Then put the digital dollar infrastructure underneath, invisible, doing what it does best.
No seed phrases. Use email, phone, biometrics. The security happens behind the scenes with the same cryptographic strength, but the user never sees it.
No gas fees. The app handles network costs. The user sends dollars and sees “free” or a simple flat fee. Done.
No network selection. The app picks the cheapest, fastest route automatically. The user doesn’t know or care which network their dollars travel on. They shouldn’t have to.
No unlimited approvals. No raw transaction signing. No confirmation screens full of hexadecimal addresses and contract calls that look like they were written for machines. Because they were written for machines.
The product that wins this market will look like a banking app. It’ll feel like Venmo or Wise. But underneath, it’ll be running on digital dollar infrastructure that settles in seconds and costs almost nothing.
Neobank on top. Crypto underneath. That’s not a compromise. That’s the best of both worlds.
The gap is the opportunity
We’re at a strange moment. The underlying technology has matured faster than anyone expected. $33 trillion in volume. $300 billion in supply. Regulation is catching up, with frameworks now signed into law across the US, Hong Kong, and Canada.
But the user-facing products are still stuck in 2019. Seed phrases. Network dropdowns. Gas token juggling. The same UX problems people complained about five years ago, largely unsolved.
The people building in this space have a choice. Keep building for the people who already understand how everything works. Or build for the billions who don’t and shouldn’t have to.
We know which side we’re on.
The Arca team is building a dollar wallet. Join the waitlist for early access.