The Finance Algorithm
§ Tool · tier 2 · independent

Billroo Budgeting App.

Australian-focused budgeting app with automation, forecasting, open banking integration, and multi-category analysis for expense management.

Live dataFree, no signupOn-deviceLiveupd May 2026
Inputs
Your numbers
$
$7k

After-tax income as deposited into your accounts.

$
$6k

Sum of all bills, subscriptions, loan repayments, and living costs.

Math updates live as you change inputs · AI runs on submit

Awaiting inputs

Move the sliders or type in the form on the left — the math updates live as you go. Click Get AI verdict when you want a written analysis.

The Billroo Budgeting App is designed for Australians who want effortless financial control with a modern, AI-powered, open banking-connected platform. Billroo imports your transactions automatically, categorises spending, forecasts your cash flow, and delivers actionable insights across all your financial accounts. Whether you're seeking to curb overspending, boost savings, or simply reduce manual spreadsheet work, Billroo adapts to your lifestyle with no-nonsense tools and category-level analysis.

§ Worked examples

Real-world scenarios

Single Professional Using Full Automation

Sophie, an engineer, links her bank, tracks all her categories, and lets Billroo flag high spending.

Inputs

bankConnections:truemonthlyIncome:7,800monthlyExpenses:6,100categories:Groceries, Rent/Mortgage, Transport

Sophie receives a proactive AI alert that her Transport spending surged. She quickly tweaks her budget and hits her savings goal the following month.

Manual Mode for Privacy-Focused User

Lachlan doesn't link his bank. He inputs figures by hand, adjusting categories each month.

Inputs

bankConnections:falsemonthlyIncome:5,400monthlyExpenses:4,950

Even without automation, monthly reports help Lachlan spot ‘hidden’ annual subscriptions and rebalance accordingly.

§ FAQ

Questions Australians ask

§ Glossary

Plain-English definitions

Open Banking
A secure way to link bank accounts for automatic data sharing across approved financial apps.
Categorisation
The process of sorting transactions by type, such as groceries, rent or investment.
Forecasting
Estimating future cash flow based on historical and current data.
AI Insights
Proactive alerts and suggestions generated by machine learning and rule-based systems within a budgeting tool.