Run your club
Everything you need to organize leagues, track standings across seasons, and enforce official or custom rulesets.
OpenSkill & EMA Ratings
Track separate 4-player and 3-player (sanma) ladders, dynamic OpenSkill ratings, and club leaderboards calculated automatically after every session.
67-Parameter Ruleset Engine
Configure custom uma, oka, chombo penalties, or load official presets like EMA 2025 and Mahjong Soul. Once games have been played under a ruleset its scoring locks, so past results can never be rewritten.
At the table
A responsive digital companion built for live tables. Track winds, calculate complex hands, and keep games flowing smoothly.
Live Table Compass & Wind Rotation
Place a phone at the center of the table. The digital compass tracks current round, honba, riichi sticks, dealer seat, and automatic wind rotations with screen wake lock.
Three Ways to Record a Hand
Every winning hand is entered the way the table wants it: han / fu for a table that already counted, pick yaku to name the yaku and dora and let the score be worked out, or the full hand tile by tile. Scoring is settled server-side against your club's active ruleset, so nobody argues with the phone.
Full Hand Entry, Tile by Tile
Lay the whole hand into the app: concealed tiles and the winning tile, called melds, dora and ura-dora indicators, riichi and ippatsu. Fu and han are derived from the hand itself — no counting on your fingers — and the finished hand is kept with the round, so a disputed score can be re-read months later.
For players
Engage your members beyond table night with career tracking, achievement hunting, and social updates.
Profiles, Stats & 170+ Achievements
Deep player profiles with placement charts, win rates and season history, plus 170+ unlockable achievement badges with shareable cards for your club chat.
Publish to the Club Feed
Post the night to your club: up to four photos and a caption, tagged to the game they came from. Tick one box and the same post goes out to the club's group chat, so members who weren't there still see it. Everyone can like and comment without leaving the app.
More built-in power for your club
Every detail tuned for effortless tournament organization and league play.
Seating Generator
Automatic balanced table and seat rotation for league nights and multi-table tournaments.
Team Draft Board
Live draft board and roster management for team tournaments and inter-club competitions.
Instant QR Invites
One-tap QR codes and shareable links to onboard new players directly into your club roster.
Attendance Polls
Schedule recurring attendance polls in your club chat, sent and pinned automatically before every game night.
Tournament Mode
Run an event on a closed local network with no online sign-in required — ideal for venues without reliable internet.
3-Player Sanma Support
Dedicated 3-player rulesets with a vacant North seat, kita (north dora), and a separate sanma rating ladder.
Offline OTB Mode
Keep scoring over the board even in basement venues or when cell connectivity drops.
Hand Photo Archive
Score a big hand and the tracker offers to photograph it on the spot, filing the picture with the round it belongs to.
Made for the club desk, too
Plan seasons, review live standings, and manage your club comfortably on a larger screen. The same club data follows you from phone to desktop.
A Look Inside
Real screens from a live riichi club season
Live season leaderboard with automatic ratings
Club directory, member roster and roles
Seasons, tournaments and event schedules
Tournament registration and participant management
67-parameter club ruleset editor and presets
Interactive over-the-board digital compass
Yaku picker with han counted per yaku
Full hand entry, tile by tile
OTB score calculation and hand declaring
Dedicated 3-player sanma board with vacant North
Offline over-the-board table setup mode
Detailed historical hand protocol and scoresheet
170+ player achievements and career ranks
Player rating, rank and placement history
Club photo feed and community memories
Publishing a post to the club and its group chat
Per-game results with scores and rating changes
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Run a riichi club?
Give your club a home: ratings, seasons, tournaments and your members in one place. Register it in a couple of minutes — we review every request and help you get started.
No-stakes riichi. Empowering local clubs with healthy competition, clean rankings, and shared fun.