Spent iPhone · Finance

One line and you're done

Write the way you talk — "Lunch burrito 12" — and the amount, the category, and the store sort themselves out. No forms, no endless setup.

Three ways in, one tidy ledger

Receipt

Snap the receipt. That's the whole step.

Take the photo. The store, the total, and every line item come back already read. Tap "Split by item" and each one is saved as its own entry, with its own category — and the photo stays attached.

Voice

Hands full? Say it instead.

Hold the mic and talk. "Bus 2.75 and coffee 4.50" lands as two separate entries, already sorted — useful on the walk home, at the register, or with a bag of groceries in the other hand.

Insights

See where the month actually went

Day-by-day and by-category charts show the shape of the month at a glance — groceries against dining out, the heavy weeks against the quiet ones. Ask for the monthly recap and the whole month comes back as one sentence.

That's the whole workflow

  1. Write one line

    Tap + and type it the way you'd say it out loud. The amount and category attach themselves.

  2. Glance at it

    Skim what came back. Adjust the date or payment method if you want to — most of the time you won't.

  3. Leave it alone

    Entries file themselves into the calendar and the insights screen. Nothing to reconcile at month end.

Why it's easy to start

  • No account, no sign-in
  • Your ledger lives on the device — no syncing between devices
  • No bank or card linking
  • Currently free, no ads

Questions people ask

Do I have to connect a bank account or card?

No. There is no account linking in the app at all. Every entry is one you typed, spoke, or photographed, so nothing reads your balances or statements.

Do I need an account to use it?

No. Install it and write the first line. There is no sign-up and no login.

Where does my data live?

The ledger itself lives on your device and never syncs between devices. The one-line text and receipt photos do go through our server to generative AI, which reads the amount, category, and store and sends only the result back — and a summary of each saved entry is recorded on our server so we can see how the service is doing and improve how it classifies things. No name, email, or account ever goes with it. The privacy policy lists what gets sent.

Can I put several things on one line?

Yes. Write "Bus 2.75 and coffee 4.50" and it becomes two entries, each with its own category.

Can I keep grocery money and fun money separate?

Yes. Make as many ledgers as you want — household spending, travel, a side project — and switch between them from the button at the top. Students often keep one just for spending money.

Is the app itself in English?

Not yet. The app ships in Korean, Japanese, and Traditional Chinese — 한줄가계부, 一行家計簿, and 一行記帳 are all the same app — and an iPhone set to English opens the Korean one. The screens on this page are drawn in English so you can see what each one does. Ledgers are kept in won, yen, or New Taiwan dollars, so the dollar figures on this page are illustrations of how the app reads a line, not screenshots of a US ledger.

Today's spending, in one line

Install it and write your first line. No login, no setup.