Now available on iOS & Android · Australia

Meet your ultimate
Aussie housemate.

Track ItDeal ItSplit It !

Your ultimate Aussie housemate for everyday money. Connect your bank, split bills without the awkward chat, hunt down fuel and grocery deals, and keep tax-time records tidy — all in one friendly app.

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Free · Private
9:41

Good morning, Alex

Your Wealth Overview

A

Total Net Worth

$84,320.47

+$1,240.50 this month

Assets

$92,100

Liabilities

$7,779

Shared Expenses

3 pending
JL

Woolworths Weekly

You + Jamie + Lena

owes $28.40
S

Netflix split

Sam owes you

+$7.50

Deals Near You · 2078

⛽ Unleaded $1.829/L 🛒 Coles Half-price 🏷 Aldi Specials

100%

Private by Design

Zero

Private Data Sold to Third Parties

3-in-1

Wealth, Splits & Deals

Core Modules

Three powerful tools. One seamless app.

centKoala brings together the financial tools that Australians actually need, built around privacy and real-world usability.

Net Worth Hub & Expense Analytics

Get a living, breathing snapshot of your total financial health across all accounts, assets, and liabilities. centKoala automatically aggregates transactions from your connected bank accounts using Open Banking and enriches them with smart AI-powered categorisation — so you always know exactly where every dollar goes.

  • Automated personal wealth summaries updated in real time
  • Smart transaction categorisation and trend analysis
  • Split bank transactions with your friends and family
  • Exportable PDF & XLSX financial statements on demand
$240k

Net worth

See it in action

Smart Expense Share Ledger

Forget awkward group chats and mental maths. centKoala's shared ledger handles household bills, grocery runs, and recurring subscriptions with complete transparency. Every participant sees a compact, real-time balance — who owes what, to whom, and why — without any visual clutter or ambiguity.

  • Multi-currency expense splitting for households & groups
  • Use bank transactions or manually add expenses
  • Viral invite links — add members in one tap
  • Balanced debt simplification so you never overpay
Jamie owes you +$42.80
You owe Lena −$15.20
Net position +$27.60
See it in action

Country & Postcode-Aware Deals Market

Why pay more when you don't have to? centKoala monitors live petrol prices at stations nearest to your postcode and maintains the weekly specials from supermarkets and electronics superstores. You're always shopping the best deal without having to compare apps.

  • Real-time localised petrol pricing by postcode
  • Create your shopping lists, share with your family and let us find deals on selected products.
  • Snap deals - community source deals in your area
  • Affiliate partner deals and seasonal savings alerts
⛽ ULP $1.829/L · Caltex 2km 🛒 Coles 1/2 price this week 🏷 Aldi Special Buys Sat
See it in action

See It In Action

Watch the three pillars do their thing

Real app recordings from our mobile emulator — watch tracking, splitting, and deal-hunting in action.

Net Worth Hub

Track every dollar without the Sunday spreadsheet

Connect your bank, watch transactions roll in, and get a clear picture of income, spending, and net worth — updated as life happens.

  1. 1 Tap Connect Bank and pick your institution
  2. 2 Transactions sync and auto-categorise
  3. 3 Your net worth dashboard lights up
Smart Expense Share Ledger

Split the bill. Skip the awkward follow-up.

Housemates, couples, road trips, share houses — add an expense, split it fairly, and settle up when everyone's ready. No mental maths required.

  1. 1 Add a shared expense and pick who paid
  2. 2 Everyone sees live balances instantly
  3. 3 Settle up with one tap when ready
Deals Market

Deal it before you checkout

Fuel, groceries, tech, bills — centKoala surfaces the best offers near your postcode so you never pay full price when you don't have to.

Tap a tab to switch the live app recording

Australian Deals, Zero Effort

With centKoala you never overpay.

Live Petrol Prices

Updated daily across all major fuel brands near your suburb.

Supermarket Specials

Auto-refreshed weekly specials for Coles, Woolworths & Aldi.

Postcode Precision

Deals are filtered by your exact location — no irrelevant interstate noise.

Affiliate Markting

Get highly localised marketing links in dedicated space.

Smart Alerts

Get notified when petrol drops below your custom price threshold.

Deals Near You

Postcode 2078 · Updated just now

Live

⛽ Petrol Prices

Caltex · 1.8 km

Unleaded 91 · Best price

$1.829

BP · 3.2 km

Unleaded 91

$1.869

7-Eleven · 4.1 km

Unleaded 91

$1.899

🛒 This Week's Best Deals

C

Coles — 1/2 Price

Chicken breast, yogurt, pasta · 43 items

W

Woolworths — Weekly Deals

Avocado 3 for $5, milk $2.99 · 61 items

A

Aldi — Special Buys

Saturday drop: camping, kitchen & more

Zero-Trust Architecture

Your financial data belongs
to you — and only you.

centKoala is engineered from the ground up with a hardened, multi-layered security model where no single component ever holds the keys to everything. Your raw financial credentials and personal history are structurally isolated — technically impossible to expose in bulk.

Client Trust Zone

Device-Level Isolation

Your JWT and Supabase publishable key are stored exclusively in the device's secure keychain (iOS Keychain / Android Keystore). They never touch a shared server or cloud storage.

API Trust Zone

Thin Authenticated Routers

Our FastAPI layer performs JWT validation and enforces role-based access on every endpoint. No service-role privileges are exposed to the public API surface — ever.

Worker Trust Zone

Air-Gapped Background Jobs

IMAP credentials, Basiq open-banking API keys, and local Llama AI model weights run in a fully separate worker process. Credential references are stored in a vault — never logged or transmitted.

Database Trust Zone

PostgreSQL Row-Level Security

Supabase Postgres enforces RLS policies that physically isolate every user's rows from every other user's rows — at the database engine level, not the application layer.

PostgreSQL Row-Level Security (RLS)

Every SQL query generated by centKoala's backend operates under strict Postgres RLS policies. A user's financial transactions, group memberships, and personal settings can only be read or modified by that user's authenticated session — no application-level WHERE clause trick can bypass this. The database enforces isolation as a hard constraint.

Local Privacy-First AI Parsing

Bank statement and invoice parsing is performed by a locally hosted Llama language model running on your own infrastructure — not a third-party cloud AI API. Your raw financial PDFs and email invoices are never transmitted to OpenAI, Google, or any external service. The AI model processes data in-process and discards it immediately after extraction.

Append-Only Audit Events

Every sensitive action — login, group invite, balance change, statement generation — is written to an append-only audit_events table. Nothing can be silently deleted. This provides a tamper-resistant financial audit trail that you control.

Token Security Architecture

Token Type Storage URL Exposure
API Key Hash + prefix only Header only
Invite Token Hash stored; raw burned Once in /join/{`{token}`}
Statement Slug High-entropy public slug /public/statements/
User JWT Device keychain only Never in URL

TOKEN_PEPPER salts all hashed tokens server-side, ensuring that even a full database dump reveals nothing usable without the live server secret.

Zero-Trust Architecture
No Data Sold or Shared
Local AI — No Cloud Inference
Postgres RLS Enforced
Immutable Audit Log

Early Testers

Built with real Australians in mind

"The petrol price tracker alone saves me money every week. I set an alert for $1.85 and it pings me whenever my nearest servo drops below that. It actually works."

M

Marcus T.

Sydney, NSW · Beta Tester

"We use the shared ledger for our three-person household. No more awkward 'you owe me' conversations. The balance is always right there — everyone can see it and no one argues anymore."

S

Sophie R.

Melbourne, VIC · Beta Tester

"As someone security-conscious, I appreciated reading about the RLS architecture. My data isn't going to an LLM API. The local AI parsing was the thing that convinced me to give it a try."

D

David K.

Brisbane, QLD · Beta Tester

centKoala

Meet your ultimate Aussie housemate.

Track ItDeal ItSplit It ! — download centKoala free and meet your new Aussie housemate.

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iOS 15+ Android 9+ Free Forever