Terms of Service
These terms explain using My Mahjong Coach, an independent American mah jongg practice and learning app.
Using the app
By using My Mahjong Coach, you agree to these terms. Use the app lawfully and respectfully. Do not interfere with its operation, attempt to access another person’s account or information, or submit abusive, unlawful or misleading reports.
You may play and learn without creating an account. If you sign in, keep your sign-in method secure and use an account you are authorized to access. Cloud saves are manual: save or load your progress when you want to move it between devices.
Coaching and game rules
The app offers practice, explanations and recommendations. Decisions involve unseen tiles and changing opportunities; advice and scores do not guarantee a result. Use your judgment at the table. Coaching scores compare options and are not measured probabilities of winning.
Use your own authorized card for the supported year and consult the official rules. House styles apply only when selected. The app currently supports the 2026 card. My Mahjong Coach is not affiliated with or endorsed by the National Mah Jongg League.
Your information and contributions
You retain your rights in information you submit. You permit us and our service providers to process it as necessary to operate the features you choose, respond to reports and maintain the service. Only submit material you are entitled to share. Our Privacy statement explains what is stored, your choices and deletion.
Suggestions help us improve the app. You allow us to use a suggestion to develop or improve features without an obligation to pay for it. This does not transfer ownership of your personal information or grant permission to publish identifying report content.
Availability and changes
The app is under active development. Features, supported cards and recommendations can change, and errors or interruptions can occur. Keep a separate copy of anything you need to retain. Browser storage may be cleared by your device or browser.
The current app provides browser-based practice without a required purchase. If we introduce paid features, we will explain the price and applicable terms before you choose to purchase. These terms do not authorize charges.
Responsibility
We provide the app as available and do not promise uninterrupted access, error-free advice or particular playing results. To the extent permitted by applicable law, we disclaim implied warranties and liability for indirect or consequential losses arising from use of the app. Nothing in these terms excludes liability or consumer rights that cannot lawfully be excluded.
Leaving the service
You can stop using the app at any time. Use Settings → Privacy & data to clear data from this device or delete your account and online information. We may restrict access when necessary to address unlawful use, security threats or serious misuse.
Contact and updates
Contact the My Mahjong Coach team through Contact & support. Sending a report requires sign-in. We will publish updates here with a new revision date and provide notice of material changes through the app when appropriate.