The shared expense tracker

Share life.
Settle with ease.

Keep rent, dinners and trips in one ledger. See who paid, what everyone owes, and which expenses are settled.

iOS 1.0 is now available on the App Store.

For groups of 2–20

Monthly category and member spending in AaBill

A shared expense

Weekend groceries

Paid by Ran
¥246.00
Split between
3 people

Each person owes¥82.00

App preview in Chinese. Amounts are examples.
Shared ledgerReceipt captureItem-by-item confirmationClear settlement

Living together means sharing expenses

Different routines,
one clear ledger.

There is no single way to share expenses. Record each one around the way your group lives.

Share a home. Keep a shared ledger.

Rent, utilities and groceries, all in one place. See who paid and how much everyone shares without scrolling through old messages.

Who paid, who joined and each share are all kept on record.
Shared-expense example

Our shared home

3 people
  • This month's rentLin paid upfrontCN¥3,600.00
  • Weekend groceriesRan paid upfrontCN¥246.00
  • BroadbandLin paid upfrontCN¥120.00
Shared totalCN¥3,966.00Each person in this exampleCN¥1,322.00

Sample data, split equally. In the app, choose the sharing method that fits your agreement.

Start with a receipt
A receipt review screen where you can edit totals and line items, then choose participants
Review first, then save

AI receipt capture

Enter less,
live more.

Take or choose a receipt and let the merchant, total and line items be prefilled. Review and edit the result before saving it to the ledger.

  • Edit, add or remove line items after recognition
  • Choose the participants for each line item
  • Make the final confirmation before saving

A fair split follows your agreement.

Choose from five split methods: equal, percentage, amount, shares or line items. Include everyone who took part.

Everyone confirms, so everyone is at ease.

Payer, participants and confirmation progress stay visible. Changes and questions have their own record and status.

Clear settlement feels lighter.

Turn many payments into net amounts and transfer suggestions, with receipt confirmation, category insights and statement export for an easier review.

From the first entry to settlement

Keeping track together
is simple.

  1. 01

    Create a ledger

    Give your shared life one place to keep a record.

  2. 02

    Invite your people

    Share an invitation so the right people can take part.

  3. 03

    Record an expense

    Record who paid, who joined and how it is split.

  4. 04

    Confirm together

    Review each item. If there is a question, resolve it together.

  5. 05

    Clear settlement

    Use the suggestion to complete a transfer and record the outcome.

Treat every shared record with care

Transparent records,
clear boundaries.

Bills and supporting evidence are available only to current members of their group. AI helps prefill; the final decision remains yours.

AaBill provides sharing suggestions and records; it does not move money for you. Complete any transfer in the payment service you choose.

Read the privacy policy

A few things you may want to know

Before you begin,
let’s be clear.

More questions?
support@cera.hk

Who is AaBill for?

AaBill is for small groups of 2–20: housemates, couples, dinners with friends, travel companions and small teams sharing expenses. Create a separate ledger for each situation.

Does everyone need to register first?

Invited guests can view and confirm bills first. After registering, they can merge that guest identity into an account. Follow the guidance in the app for the full flow.

Are receipt results saved automatically?

No. Recognition only prefills a draft. You can edit the total, add or remove line items, check participants and the split, then save it yourself.

Does AaBill transfer money for me?

No. AaBill organizes splits, net amounts and settlement suggestions, and records confirmations. Move money through the bank or payment tool you choose.

Where can I get the iOS app?

iOS 1.0 is now available. Download it using the official App Store link below; availability depends on your local App Store.

AaBill app icon

Your next shared expense
starts here.

Keep everyday spending clear with the people who matter.

For iPhoneDownload on the App Store

iOS 1.0 is now available
Download it on the App Store