13 Orphans Calculator
KEVIN ALLEN GONZALES ONG Utilities iPhoneiPadiPod touch
13 Orphans Calculator is a free Utilities app for iPhone and iPad by KEVIN ALLEN GONZALES ONG. Requires iOS 16.4. Updated September 25, 2026.
- Price
- Free
- on the App Store
- Size
- 42 MB
- Age 4+
- Updated
- Sep 25
- 2026 · v1.0.2
Screenshots
About 13 Orphans Calculator
13 Orphans Calculator helps you score Mahjong hands and keep games moving at the table. Score hands across Riichi, MCR / Chinese Official, Hong Kong, and Taiwanese Mahjong, with support for custom rule profiles. Build your completed hand, enter the relevant scoring details, and review the result with clear point and payment information. Game tracking tools help tables record wins, draws, rounds, dealer changes, and score movement without needing an account. Designed for real Mahjong tables, 13 Orphans Calculator keeps the scoring process organized so you can spend less time calculating and more time playing. Features include: • Riichi Mahjong scoring • MCR / Chinese Official scoring • Hong Kong Mahjong scoring • Taiwanese Mahjong scoring • Custom rule profiles • Hand building and score calculation • Game and score tracking • Local-first play with no account required Optional Pro features are available through a one-time lifetime unlock.
What’s new
Version 1.0.2 · Updated September 25, 2026
Improved the calculator guides and game tracking experience. Fixed Hong Kong guide examples so tile combinations display correctly. Fixed a Taiwanese Live Table issue where the page could remain scrolled to the bottom after switching from Edit Setup. Improved page switching behavior in Custom Track a Game. Clarified the Riichi Yaku guide, including the requirement to have at least one Yaku to win. Also includes minor stability and usability improvements.
App privacy
The developer, KEVIN ALLEN GONZALES ONG, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Purchases: Purchase History
Used for: Analytics, App Functionality
Alternatives to 13 Orphans Calculator
Looking for apps like 13 Orphans Calculator? Here are 6 similar apps on the App Store. The highest rated is Riichi Compass (3.0/5), and all 6 are free to download.
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Riichi Score
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MajRoom
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Riichi Log: Score Tracker
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Riichi Mahjong Score Calc
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Riichi Compass
3.0
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Board Game Scanner: BGG Sync
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| 13 Orphans Calculator | – | Free | September 25, 2026 | |
| Riichi Score | – | Free | Oct 10, 2026 | Compare |
| MajRoom | – | Free | Feb 28, 2026 | Compare |
| Riichi Log: Score Tracker | – | Free | Aug 27, 2026 | Compare |
| Riichi Mahjong Score Calc | – | Free | Jul 31, 2026 | Compare |
| Riichi Compass | 3.0 / 5 (1) | Free | Jan 28, 2026 | Compare |
| Board Game Scanner: BGG Sync | – | Free | Aug 26, 2026 | Compare |