• AI
  • Personal finance

Gastito

Log an expense with a photo, and let AI pull out the amount and category.

Our own personal finance app that extracts expenses with AI from a photo, a line of text or a PDF.

Role
Lucas
Status
Personal use
Duration
2026 – present
Stack
Next.js, Supabase, Claude, Gemini, Groq, Vercel

At a glance

3
ways to log an expense: photo, text or PDF
Push
budget alerts in the browser
Cron
reads bank alerts by email and logs them

The problem

Writing down every expense is tedious, which is why almost nobody keeps it up. We wanted logging an expense to take as much effort as snapping a photo of the receipt.

How we approached it

Gastito is a Next.js app on Supabase. You upload a photo, type a line or attach a PDF, and language models (Claude, Gemini and Groq) pull out the amount and category. A scheduled job reads the spending alerts the bank sends by email and logs them with no manual step.

On top of that data the app builds budgets with alerts, and a chat to ask where the money went.

Gastito home screen: the month's spending, income, fixed expenses, budget used and breakdown by category Gastito sheet for adding a new expense: take a photo of the receipt, pick from the gallery, paste text or enter it by hand
Sample data

Where it stands

It’s our own app, for personal use. It’s where we test how to combine several AI models in a real product.

Need something similar?

Tell us about it, and within one business day we'll tell you how we'd approach it, with a timeline and a cost estimate.

GastitoLet's talk