Rule input & players
Choose players, rates, and table rules. The next match can start from the rules you entered last time, making setup quick.
Simple × Light × Analytical
Mahjong score tracker app for scores, payouts, and stats
MemoJong records 3-player and 4-player mahjong results, point totals, payouts, average placement, and opponent stats in one simple app.
- Simple: Intuitive UI with quick interactions so anyone can log results instantly
- Automated: Enter points and rates once and the app finishes every settlement
- Analytical: Daily, monthly, and opponent-based statistics make growth visible
Flexible rules
Supports 3-player / 4-player tables and custom rates
Auto math
Converts points, chips, and rates together
Backup ready
One tap to save and restore your history
Screens and features
Explore the main MemoJong screens for match entry, score calculation, payouts, and statistics.
Features
One app for recording and analyzing mahjong
From rule input and point calculation to P/L tracking, match history, rankings, record sheets, and sharing, the lightweight UI works smoothly for beginners and experienced players.
Automatic point math
Input rankings and scores to calculate payouts instantly—no more manual slips.
P/L calculation
Calculate real profit and loss from rates, uma, oka, chips, and table fees. Review each session, monthly P/L, and P/L trends over time.
In-depth analytics
See total points, average ranks, daily / monthly trends, and opponent win rates at a glance.
Ranking boards
Create leaderboards with your favorite metrics so friendly rivalries stay exciting.
Hand calculator
Lay out tiles to compute fu, han, and points for ron or tsumo with parent/child handling.
Sharing tools
Export performance tables, match record tables, and score sheets as images or CSV files so you can drop them into spreadsheets right away.
Backup & restore
Create backups with one tap and restore by picking a file—your valuable history stays safe.
Dark mode
Automatically switches to a dim theme in dark parlors so eyes stay comfortable.
Guides
Practical guides to tracking mahjong results
Learn how to record consistent calculation rules and review performance on the same basis every time.
How to calculate mahjong P/L
Follow the correct order for base points, uma, oka, rates, chips, and table fees with a four-player example.
Read the guide (Japanese)Mahjong performance metrics
Learn how average rank, first-place rate, last-place rate, score, P/L, and game count work together.
Read the guide (Japanese)Ways to manage match records
Compare paper, Excel or spreadsheets, and a dedicated app for entry, totals, sharing, and backup.
Read the guide (Japanese)
Press
Featured in press releases
The launch of MemoJong for Android was covered by PR-FREE and PRESSNOW.
Mahjong performance tracker MemoJong launches on Android
Read the article (Japanese)MemoJong for Android released on May 14, 2026
Read the article (Japanese)
Workflow
Three steps from input to review
Capture match logs with paper-like simplicity and analyze them right after the game.
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1
Register the match
After each game, enter points and ranks. Rates and chips can be set, and the next match can start from the rules you entered last time.
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2
Settle points and chips automatically
Points, chips, rates, and table fees are calculated as you enter them, with every difference kept easy to check.
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3
Review the final result
See the rules, players, rates, table fee, and final result together for quick review and sharing after the match.
Screens
See how MemoJong feels
The UI stays simple while keeping every analysis tool close at hand.
FAQ
Frequently asked questions
We clear up common concerns so you can bring the app to the next session immediately.
Does it support 3-player and 4-player rules?
Yes. You can choose the rules for 3-player and 4-player mahjong, and the next match can start from the rules you entered last time.
How do I back up data?
Use the in-app backup tool to save with one tap. Restoring is as simple as choosing the saved file.
Is MemoJong available on Android?
Yes. The Android version is available on Google Play, and the iPhone / iPad version is available on the App Store.
Can I export CSV files for spreadsheets?
Yes. Export your results as CSV files and import them into Google Sheets or Excel for deeper analysis. The data can also be used as a match record table.
Can I output a match record table or score sheet?
Yes. MemoJong can output results as a performance table, match record table, or score sheet, using image and CSV formats for sharing settlements.
Is MemoJong free to use?
Yes. You can download MemoJong for free and start recording mahjong sessions right away.
Can it calculate rates, uma, oka, and chips?
Yes. MemoJong can record table rules such as rates, uma, oka, chips, and table fees.
Can it track table fees in payout totals?
Yes. You can include table fees to manage the real payout for a private mahjong session.
Can I see opponent-based stats?
Yes. MemoJong helps you review performance by opponent and by regular group.
Can I check average placement?
Yes. Average placement, placement distribution, and trends are available in the stats screens.
Can I move data to a new phone?
Yes. Use backup and restore to move saved match records to another device.
Do I need an account?
No. You can use MemoJong without account registration.
Does MemoJong collect personal information?
Match records are primarily stored on-device. See the privacy policy for information used for analytics, advertising, and app reliability.
Can I use it for private mahjong payout tracking?
Yes. It is built for recording private sessions, payouts, chips, and fees.
Does it work on iPad?
Yes. MemoJong supports iPhone, iPad, and Android devices.
Privacy
Data storage and privacy
- Match records are primarily managed on-device
- Backups are created in a location selected by the user
- Analytics, advertising, and reliability services are explained in the policy
Keep your records simple, fast, and analytical.
MemoJong is free to download. Start logging today's matches smarter with the app.
Works on iPhone / iPad / Android · Free download