Ledgerapp – Fast Team Expense Tracker Built with Next.js and Supabase

I built LedgerApp to solve a problem I kept running into: tracking shared expenses with my team was always more complicated than it needed to be.

What it does:

- Log expenses in under 15 seconds (amount, category, date, receipt)

- Real-time per-person balance calculations

- Automated "Settle Up" calculator that minimizes transactions

- CSV/PDF exports for accounting

- Free for teams up to 3 members

Tech stack:

- Next.js 15 with App Router

- Supabase (Postgres + Auth + Storage)

- Stripe for subscriptions

- AWS SES for emails

- TypeScript throughout

What makes it different:

Most expense trackers are either too simple (spreadsheets) or too complex (enterprise software). I focused on speed—the form is minimal, balances update in real-time, and the UI is mobile-first.

Free tier: Up to 3 team members, unlimited expenses, basic dashboard. No credit card required.

Paid tiers: Features like CSV export, Settle Up calculator, and advanced charts, slack integrations etc.

I'd love feedback from the HN community, especially on: - The balance calculation logic (currently splits equally) - The UX flow for adding expenses - Any features you'd find useful for small teams

Try it free: https://ledgerapp.team