AA Wizard — group expense settle-up router

Log every shared expense and get a minimal transfer path when the trip ends.

Problem

After trips, dinners, or group activities, reconciling in chat apps is painful: who fronted the money, who still owes, and a pile of small transfers going back and forth. One developer built a mini app for personal use and it accumulated over 900 group ledgers, proving demand is real.

Solution

A lightweight tool focused on multi-person splitting plus optimal transfer paths. Each entry assigns participants, and when the activity closes it computes the fewest transfers and exports a clear result page. Data is immutable and visible to all members, reducing trust friction.

Users

Small groups that travel, eat, and play together, plus activity organizers

MVP

Create an activity and invite members; assign participants per entry; generate minimal transfer paths at close; read-only result page for all; export as image or text

Revenue

Free core; premium for multi-currency, cross-activity settlement, team-building templates, and ad-free

Why now

Small-group money splitting is high-frequency and poorly served, and a self-built mini app has already validated real usage; indie developers can ship a more focused take