Billy

Billy knows who had what.

Photograph the receipt. Tap who had what. Billy works out who owes whom, so nobody has to do maths in the group chat.

Email me when it's out

Coming to the App Store and Google Play. One email, when it lands. Nothing else.

BAR CENTRAL Lisboa · 4 Aug
Bife à Portuguesa14.50P
Bacalhau à Brás13.00M
Salada mista6.50A
Vinho da casa18.00PM
Água 1.5L2.50PMA
Couvert4.50PMA
Total€59.00
Pedro pays Marta€25.84
Ana pays Marta€8.83

Marta paid. Two payments settle it, and the odd cent goes somewhere on purpose.

“Let's just split it evenly”

Somebody had the steak and half the wine. Somebody had a salad and tap water. Splitting evenly means one of them is quietly paying for the other, and everyone at the table knows it — which is why the group chat fills up with arithmetic nobody volunteered for.

Billy does the arithmetic. You just say who had what.

Three taps, roughly

  1. Photograph the receipt Billy reads every line — including the service charge, the couvert and the tip, which are the lines people forget and then argue about.
  2. Tap who had what Hold to grab several lines at once. Two of you shared the wine? Split that one line between the two of you and leave the rest alone.
  3. Send the answer Who pays whom, in the fewest payments that settle it. Copy it straight into the group chat.

No subscription. Nothing recurring.

Splitting by hand is free and stays free — as many receipts, as many people, as often as you like.

Reading a receipt is the part that costs real money to run, so scans come in packs: ten for €1.99. Buy them once and use them whenever. They don't expire, and there is nothing to cancel.

No account. No sign-up. No email address.

Your splits live on your phone and nowhere else. There is nothing to log in to, and no way for anyone — including us — to read them.

The one thing that ever leaves is the receipt photo itself, at the moment you choose to scan one. It goes to Anthropic's Claude to be read, and it is not kept afterwards. The privacy policy says all of this in more detail, and in plainer terms than most.

Billy remembers.

Coming to the App Store and Google Play.

Email me when it's out