Splitdumb

A simple expense-sharing app. Track shared expenses, calculate balances, and settle up with minimal transactions.

Features

• Groups: Organize expenses by trip, household, event, etc.
• Expense tracking: Record who paid and who participated
• Balance calculation: See who owes what at a glance
• Smart settlements: Minimizes the number of payments needed
• Simplify debts: Optional mode that consolidates debts across the group

Quick Start

# Docker
docker compose up --build -d
open http://localhost:8080

# Manual
cargo run -- serve &
cd web && bun install && bun run dev
open http://localhost:5173

CLI

# Add expense directly
cargo run -- add-expense -d "Dinner" -a 60 -p Alice -P Alice,Bob,Charlie

# View balances
cargo run -- show-balances

# View settlements
cargo run -- show-settlements

Tech Stack

• Backend: Rust, Axum, Tokio
• Frontend: React 19, TypeScript, Vite
• Storage: JSON file (app_data.json)
• Auth: Phone number + bearer token