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Split Duo

Made for exactly two

Two people.
One balance.

Groceries, rent, dinner, the vet. Split Duo keeps the two of you even — without a group chat, a spreadsheet, or any math in your head.

Download on the App Store On Android? Use the web app

Free · iPhone & iPad (iOS 16.4+) · Android & desktop in any browser

The Split Duo balance screen: a scale tipped toward Jordan, reading “Jordan owes Alex $35.08”, with unsettled spending by category below.

Why it's different

Most split apps make you build a group for two.

Split Duo starts where you actually are: you, one other person, and a running total between you. Nothing to set up but a name.

Two people, no group

Share one invite code and you're set. No members to manage, no picking who's on each expense — it's always the two of you.

Any split, to the cent

50/50 unless you say otherwise. Drag to any share and Split Duo hands the odd penny to one of you, so the two halves always add back to the total.

One balance, always current

Whatever either of you adds lands on both phones. Open the app and the first thing you see is who owes who, and how much.

Add it

Ten seconds, then forget about it

What it was, who paid, how you're splitting it. Rent, internet and streaming can repeat on their own each month, so the standing costs stop needing you at all.

The Add expense screen with a description, who paid, category, and a slider splitting the cost 50/50.

Scan it

One receipt, two people, line by line

Point the camera at a receipt and Split Duo reads back the items. Tap each one to put it on you, on them, or down the middle — for the grocery run where half the cart is theirs.

No camera to hand? Forward the email instead. Your household gets a private address, and an order confirmation or a restaurant receipt sent there turns up on your balance with the merchant, total and date already filled in — for you to check and split, never added on its own. Either way, having AI read a receipt costs one credit.

Settle it

Send the request, mark it paid

Ask for exactly what you're owed on Venmo, with the note already written. Mark it settled in full or in part — and undo it if you both paid at once.

The Settle up screen showing $35.08 owed, a Venmo request button with a pre-filled note, and a hold-to-mark-settled button.

See it

Where the money actually went

Any month, broken out by category, with both of your shares side by side. Search the whole history by merchant, and take a month with you as a CSV.

The History screen for July 2026: total spent, each person's share, a category pie chart, and the list of expenses.

Try the split

Drag it. This is the real control.

Dinner out · Nona's Trattoria $84.27
You$42.14 Them$42.13
50% 50%

Free, and then optional

Buy it once, or never.

Splitting, settling up, receipt photos, profile photos and your full history are free for as long as you want them — including your first 10 Intelligence Credits. A credit is what it costs to have AI read one receipt, whether you photograph it or email it in, and they are shared with your household. Run out and you can buy 50 more for $2.99, or 200 for $9.99 — they never expire and never renew.

Pro is separate, and separate on purpose: a single purchase, not a subscription, for the people who use the app hard enough to want the rest of it.

Split Duo Pro

What Pro unlocks

  • Unlimited receipt reading — scanned or emailed in — with your own AI key
  • Quick add with Siri — log an expense hands free
  • Apple Watch app — log an expense from your wrist
  • Recurring expenses — rent and subscriptions add themselves
  • Spending trends — how your spending is changing, month to month
  • CSV export for any month
  • Google Drive backup of receipts and history

Stop keeping score in your head.

Free on the App Store. Or open the demo in your browser — it needs no account.

Download on the App Store On Android? Use the web app