Field expense tracking that fits in your pocket

Terrain replaces the field visit expense spreadsheet with a mobile app your specialists actually carry. Payments, envelope requisitions, photo proof, and balances — reconciled in real time.

Open the app

No sign-in needed — this demo ships with sample field data.

Track field visits

Log every visit with its costs by category — transport, fuel, lodging, meals — the way your spreadsheet already does.

Envelope requisitions

Request cash advances before you travel. Finance approves and disburses; the balance updates automatically.

Photo proof, on the spot

Snap receipts and invoices from your phone camera and attach them to the visit. No more lost paper.

Live balance & reconciliation

Total expense minus advance equals balance — computed the moment you enter it, per visit and per person.

Built to grow with you

Every screen talks to a clean /api/v1 backend
Installable and works offline as a PWA
Mock-first data, ready to swap for a real database