Spreadsheets break down
The “shared expenses” sheet starts strong, then quietly dies in month four. By year two, no one trusts the numbers anymore.
Propact is the first Australian app built for people who share a property. Track every cost, split every payment, and know exactly what each person owns — from settlement day to the day someone exits.

You both put in a deposit. One of you pays the mortgage. The other handles the bills. Someone fixes the dishwasher. A year in, no one really knows who's ahead, who's behind, or what fair looks like.
The “shared expenses” sheet starts strong, then quietly dies in month four. By year two, no one trusts the numbers anymore.
“Did you pay your half?” “I think I covered the last one?” Without a clean record, every conversation feels like an audit.
When one person wants out, you both guess at a fair price. Without contribution history, mortgage shares, and equity adjustments — you're negotiating in the dark.
Whether you're starting out, helping a child onto the ladder, or building a portfolio with friends — Propact handles the financial side of the relationship.
Couples and friends pooling deposits to crack the market together — and wanting clarity from day one.
Family members co-buying to help each other in — with clear records that stay clean for tax and estate.
Two to four people building an investment property portfolio together — without losing track of who put in what.
Six tools, one source of truth. Each module is built around a real moment in shared ownership.
Log every shared expense. Auto-split by ownership share or override per item. Photo receipts. Categories baked in.
Connect your home loan and see exactly what each person's share of principal, interest, and the outstanding balance is — every month.
Model lump-sum repayments and see the years and dollars saved. Allocate the impact fairly between co-owners.
Plug in your offset balance and watch the interest savings flow through to each person's equity in real time.
Live view of what each co-owner actually owns — adjusted for contributions, extra payments, and property value.
One person wants out? Calculate a fair buyout price in seconds. Generate a clean PDF summary you can both sign.
Add the address, purchase price, current value, and your home loan details. We pull the rest from public AU property data.
Each person joins by email or magic link. Set ownership percentages once — adjust them later as contributions change.
Log expenses as they happen. Watch equity update live. Use the buyout estimator the day someone wants to exit cleanly.
You'll own this property for 25+ years. We priced Propact like a tool you keep, not a subscription you forget.
For early believers — covers your first 2 years
Pay once, use everything for 24 months. No renewal hidden in fine print.
For everyone after the founding offer
Cancel anytime. Your data exports cleanly to CSV — yours to keep.
We're launching soon. Founding members get access first — about a month before public launch. Early access spots fill on a first-come basis, and we'll email you as soon as your seat is ready.
No. Propact is built for any combination of two to four co-owners — couples, friends, parent-and-child, sibling groups, or investment partners. The maths and reporting work the same.
Spreadsheets capture what happened. Propact captures what each person owns — automatically updating equity as contributions, mortgage payments, extra repayments, and property values change. Plus a buyout estimator that no spreadsheet does well.
The Buyout Estimator generates a fair price using your contribution history, current property value, and outstanding mortgage share — then exports a clean PDF summary you can both review and sign.
All data is encrypted in transit and at rest, hosted in Australian data centres via Supabase, and never sold or shared. You can export everything to CSV at any time.
Yes. Propact handles owner-occupied and investment scenarios, including shared rental income tracking, expense allocation by ownership %, and reports formatted for your accountant.
Join the founding members and lock in everything Propact will ever build — for the price of a couple of date nights.