Mahj Circuit
Omahji Circuit is a seasonal mahjong league played in person. Players in a city join a season, meet for weekly matches at real venues, and climb a shared leaderboard. Each league is run by a local Partner, such as a mahjong studio or club, using Circuit HQ, while players use the Circuit app on iOS, Android and the web. Circuit is part of the Omahji family but is a separate product with its own brand.
Project Overview
Circuit turns casual mahjong into a season with something at stake, without turning it into a screen game. Every match is played face to face; the app handles everything around the table. Players find an open seat or propose a match, talk to their table before the game, enter scores together (a match only counts once everyone at the table signs off), and watch the standings move. Scoring is designed to reward showing up: only a player's best two matches each week count, so a rough night never costs anyone. On the other side, Partners run their league from Circuit HQ: weekly play windows, players and entry fees, an inbox for questions, a weekly recap, and the rankings. Circuit was meant to feel like a club, not a sports app. The brand is built on deep jade, plum and gold over warm cream paper, with Source Serif 4 for anything that carries identity (titles, names, scores) and Inter for everything functional. Each main screen has its own illustrated mahjong tile, set against sakura branches, bamboo, cranes and lattice patterns. I designed the brand and the product and built both apps end to end, using an AI-assisted, agentic development workflow.
Project Scope
Project Showcase
