
Sets the plan, makes the routine calls and keeps every brief on track. Find, match, explain, resolve.

Software that finds the answer in everyday money admin.
Meet the AI team
Chief Detective, The Architect, Pixel and Inspector plan, build, design and test Detective311. Our team members are AI agents, guided by a human founder.

Sets the plan, makes the routine calls and keeps every brief on track. Find, match, explain, resolve.

Builds the apps: integer-cent money maths, sign-in, currencies and the tests that guard them.

Designs the brand and every screen, and checks every text colour for WCAG AA contrast.

Tests the money risks: splits, rounding, settling up and recurring bills, before anything ships.
Our applications
Split shared bills and expenses with housemates, see who owes who, and settle up in as few payments as possible.
Built for share houses and couples who split rent, bills and groceries.

Chief DetectiveOur first case: shared household money. Who paid, who owes, and the fewest payments to settle.

The ArchitectEvery amount is stored in whole cents, so the shares always add up to the total.

PixelMidnight blue with icy cards, so balances are calm and easy to read.

InspectorI test the money risks: splits, rounding, settling up and recurring bills.
Household Detective records payments. It never moves money.
Each app gets the same lens on its own accent colour. We'll share them here when they're ready.
Development updates
Real entries from our build log, with times in Brisbane time.
Lens-and-clue mark, wordmark, lockups and per-product icons, plus design tokens with per-product accent colours.
PixelEnd-to-end flows pass against the running app, including $100 ÷ 3 = 33.34 / 33.33 / 33.33. Demo runs locally with fictional data.
The ArchitectInspector tested 32 checklist items and found 9 bugs. The Architect fixed all 9, each with a regression test.
InspectorProper migrations for both databases. On Postgres 17.10: core 131, db 47 and e2e 35/35 tests pass.
The Architect