Turn spare change into Bitcoin.
Own bitcoin without ever deciding to buy it. Every purchase adds a little spare change to your week. On Monday it's collected from your bank in one go, and by Thursday it's bitcoin in a wallet only you control. Buy your coffee. The saving takes care of itself. Change saving from a transaction to a behaviour, one Sweep at a time.
Three steps.
Link your bank
Read-only, a few minutes. Sweep sees your purchases. Before anything is collected, you agree to the weekly debit, and we email you a copy.
Spend as usual
A $4.30 coffee leaves 70¢ to the next dollar. That 70¢ is a Sweep, added to your week. Turn the multiplier up and it's $1.40, or more.
Monday it's collected. Thursday it's bitcoin.
Your week's Sweeps are collected from your bank in one go, converted by a regulated partner, and delivered over Lightning to keys only you hold.
- All weekSpend as usual. Every purchase adds a Sweep, and you watch the week build on Home.
- MondayCollected from your bank, in one go
- TuesdayYour money lands, ready to convert
- ThursdayIn your wallet, as bitcoin
A week under $5 isn't collected. It rolls into the next week. Cancel a week, pause or stop whenever you like.
What does your spare change build?
Sweeps take the timing out of it. Move the sliders to see what everyday spending adds up to at today's bitcoin price.
Saving that happens while you're busy living.
Every card purchase leaves change to the next dollar, and each one is a Sweep. They add up on Home under "On its way this week", with the days they'll be collected and land in your wallet. Nothing to remember, no timing the market, no deciding.
See it before it's collected. This week's total, how many Sweeps, and about how many sats at today's price.
You're in charge. Cancel this week's Sweeps from Home. Pause or stop whenever you like.
Multiplier. Sweeps scaled to how you actually spend — up to 10×.
Every Sweep visible. What you bought, what was swept, what it's worth now.
Your sats could buy… A plain-English sense of what your pile is worth.
Not the number on the news. Yours.
Sweep works out your own inflation rate from what you actually buy, against official price data. Most people's is higher than they expect — and Sweep shows them which categories did it.
Work out yours now with our free calculator →
Built from your spending, not a national basket.
Category by category, so you can see what's really moving.
See where your money really goes.
Where your money went this month, by category — and the subscriptions you'd forgotten about. Sweep never lectures you about your coffee. It just shows you the picture.
Spending by category, month over month.
Subscriptions surfaced, so nothing quietly drains you.
You hold the keys.
Most apps keep your bitcoin. Sweep can't touch yours — not to freeze it, not to lose it. The keys live on your phone. If Sweep disappeared tomorrow, your bitcoin would still be yours.
Buy. Top up with a one-off purchase whenever you like.
Send and receive over Lightning, straight from the app.
Withdraw safely into your bank account. No exchanges.
Automatic and self-custodied. Round-up apps save into cash. Wallets hold bitcoin but save nothing for you. Sweep does both.
You're not doing this on your own.
Every time someone, somewhere, sweeps their spare change into bitcoin, a light goes on roughly where they are. Watch it tick over through the day — a quiet reminder that other people are saving the same way you are, one coffee at a time.
Live, worldwide. Sweeps today, and where the latest one landed.
The Power of Small. What $1, $2, $5 or $10 a day adds up to over a year — next to your own average Sweep.
Did you know? A new piece of money knowledge each time you open the app.
The money news, in plain words.
Paiges picks the money stories that matter and explains each one in a sentence or two, with a link to the original. Sweep's own news is there too, so you hear about changes from us first.
Fresh every day, from sources we trust.
No doom, no hype. Explainers, not price calls.
A little money knowledge, every time you open it.
Short videos and podcasts about money and bitcoin, refreshed all the time from channels we curate. Never the same six twice.
Fresh daily — new releases first, then the best of the library.
Watch or listen. Pick what suits the moment.
Your own money teacher, in your pocket.
Sweepy is an AI you can ask anything about money, or about how Sweep works. A patient teacher who knows your numbers and explains it in a way that is easy to understand. Why prices keep rising. What a sat is. What happened when we left the gold standard. Why your own inflation rate isn't the number on the news.
Knows your numbers. Your balance, your multiplier, today's inflation rate where you live — so answers are about you, not the average.
Teaches, never advises. Inflation, bitcoin, saving, budgeting, the history of money. Sweepy will not tell you what to buy or when. Ever.
Plain English, no lectures. Simple analogies, no jargon, and it never judges how you spend.
Honest about limits. If Sweepy doesn't know, it says so and hands you to a human.
Your money, your bitcoin, your keys.
Non-custodial
Your bitcoin sits in a wallet whose keys live on your phone. Sweep can't move it, freeze it or lose it — and neither can anyone who gets into Sweep.
Read-only bank link
Sweep reads your purchases so it knows what to Sweep. The bank link itself can't move money. Your Sweeps are only collected once a week, with the weekly debit you agree to in the app.
Regulated conversion
Dollars become bitcoin through a regulated partner, with identity checks done once at sign-up. Sweep itself never touches the money.
Looking out for you
Every Sweep is tracked from the purchase to your wallet, and anything out of place gets checked by Sweep Ops. We will never ask for your recovery words.
Twenty years in technology and payments across major Australian financial institutions and government. Currently a senior leader on a national real-time payments program.
Sweep IP Pty Ltd · Central Coast, New South Wales, AustraliaBuilt to teach two daughters what happens to money that sits still.
A solo father of two, Andrew wanted an app that saved automatically and made money easier to understand.
There was no app that did that. So he wrote one.
Starting in the Americas.
Sweep is being tested in three countries, each in its own currency. More are on the way.
United States
Our launch market. Sweeps in dollars.
Testing nowBrazil
Sweeps in reais.
Testing nowMexico
Sweeps in pesos.
Testing nowComing next
Canada, and more of the world's largest economies.
On the waySomewhere else? Tell us where you are and we'll let you know when it's your turn. Join the list →
Things people ask.
What is Sweep?
An app that saves your spare change into bitcoin instead of cash, in a wallet only you control. You link your bank and spend as you normally do. The spare change from each purchase adds up over the week, and once a week it becomes bitcoin on your phone.
How do Sweeps work?
Each card purchase counts up to the next dollar. A $4.30 coffee leaves 70¢, and that 70¢ is your Sweep. A multiplier lets you scale it — 2× makes it $1.40, up to 10×. Your Sweeps add up over the week, are collected from your bank on Monday, and land in your wallet as bitcoin by Thursday. Weeks under $5 roll into the next week.
Who holds my bitcoin?
You do. Your wallet's keys are generated on your phone and never leave it. Sweep can't move your bitcoin, freeze it or lose it. If Sweep disappeared tomorrow, your bitcoin would still be yours.
What can Sweep see at my bank?
Your transactions, read-only, so it knows what to Sweep and can show you your spending and inflation insights. The bank link itself can't move money. Your Sweeps are only collected once a week, with the weekly debit you agree to in the app.
Can I stop or pause it?
Yes, any time. Cancel this week's Sweeps from Home, or pause or stop Sweeps altogether. Your bitcoin stays in your wallet either way.
What does it cost?
3% of what's collected each week, plus US$0.92 a week, only in weeks when there's a collection. No subscription. The fee is shown in the app every week.
Can I get my money back out?
Yes. Withdraw safely into your bank account from inside the app — no exchanges. You can also buy more, or send and receive bitcoin over the Lightning Network. It's your bitcoin; move it whenever you like.
Where is Sweep available?
Sweep's launch market is the United States, and we're now testing in Brazil and Mexico. We'll be looking to expand to the UK, Europe, Asia and more of the Americas over the coming months. Tell us where you are below and we'll let you know when it's your turn.
Is this financial advice?
No. Bitcoin's price goes up and down, sometimes a lot. Sweep is built for small amounts over long periods, and it will never tell you what to do with your money.
What's a sat?
The smallest unit of bitcoin — one hundred-millionth of a coin. Sweeps are small, so sats are the honest way to count them.
Testing has begun.
Tell us you want in and you'll hear from Andrew, not a mailing list.