Terms of Service and End-User License Agreement

1. What the app is

Crak Dot Bam is a training tool and live-play companion for American Mahjong. It helps you recognize your tiles, choose Charleston passes, match your hand against your card, and practice play. The app is a study and play aid, not a substitute for your official card, and not a guarantee of any particular result in a real game. Advice is generated by AI models and may be imperfect; you are responsible for your own decisions at the table.

2. Eligibility and accounts

You must be at least 13 years old to use the app. If you are between 13 and 18 (or the age of majority where you live), you may use the app only with the consent and supervision of a parent or legal guardian, who agrees to these Terms on your behalf and is responsible for any purchase made through your account. Some features are restricted to users 18 and older, in particular Game Night (group scheduling and its notes thread). We collect a self-declared age at sign-up to enforce these limits. You are responsible for your account credentials and for activity under your account. Authentication is provided through our sign-in provider (Clerk); your use of that sign-in is also subject to its terms.

3. License to use the app

Subject to these Terms, we grant you a personal, limited, non-exclusive, non-transferable, revocable license to use the app for your own non-commercial play and study. You may not:

• copy, modify, reverse-engineer, decompile, or create derivative works of the app, except as permitted by law;
• resell, sublicense, rent, or commercially exploit the app or any advice it produces;
• use the app to build or train a competing product;
• access the app through automated means (scraping, bots) or circumvent rate limits, authentication, or other protections;
• use the app in any unlawful way or in a way that harms us or other users.

We and our licensors (for example, the providers of the fonts, AI models, and other assets we license) retain all rights in the app, including its software, design, and content, except for content you submit (see section 6) and except for the physical American Mahjong cards themselves and their publishers' protected content (see section 5).

4. Subscriptions, trials, and billing

During the TestFlight beta and early-access period the app is free and no subscription is charged; the plans and billing terms below take effect only when in-app purchases are enabled.

Some features may require a paid subscription. The currently planned plans are:

• Purchases are made through the platform. Subscriptions are sold and billed through the Apple App Store or Google Play in-app purchase system. Payment is charged to your platform account at confirmation of purchase.
• Auto-renewal. Subscriptions renew automatically at the then-current price unless you cancel at least 24 hours before the end of the current period.
• Trials. If you start a free trial and do not cancel before it ends, the subscription begins and you are charged. Any unused portion of a free trial is forfeited if you purchase a subscription.
• Manage and cancel. You manage, cancel, and request refunds through your Apple or Google account settings, subject to the platform's policies. We do not process card payments and cannot directly issue platform refunds.
• Price changes. We may change prices for future periods; we will give notice as required by the platform and applicable law before a change takes effect.

5. American Mahjong card data

The app helps you play against your own physical American Mahjong card that you have purchased from its publisher. It currently supports the two most widely used cards, the National Mah Jongg League (NMJL) card and the American Mah Jongg Society (AMS) card, and may add more over time (you can request a card through the in-app feedback button). The app does not sell, distribute, reproduce, or provide any official card or its protected content, and it is not affiliated with, endorsed by, or sponsored by the National Mah Jongg League or the American Mah Jongg Society. You are responsible for obtaining a valid, current card to play. References to specific hands and cards exist solely to help you use a card you already own.

6. Your content and acceptable use

6.1 User-generated content

The app lets you create and, in some cases, share content, for example AI-generated backgrounds, display names, team and group names, Game Night notes (an 18+ feature), and feedback. You retain ownership of content you submit, and you grant us a worldwide, non-exclusive, royalty-free license to host, store, display, and process that content solely to operate and improve the app, including showing it to people you choose to share it with, and displaying your chosen display, team, or group name to other users where a feature does so (for example, on a leaderboard).

6.2 Acceptable use

You agree not to submit, share, or transmit content that is unlawful, infringing, hateful, harassing, sexually explicit, deceptive, or otherwise objectionable, and not to impersonate others or violate anyone's rights.

6.3 Reporting and removal of objectionable content

You can report objectionable shared content and Game Night notes from within the app, and you can block another user or leave a shared activity. We do not tolerate objectionable content or abusive users. We will review reports and remove violating content and/or eject the responsible user within 24 hours of a credible report. We may also review, remove, or disable access to any content, and suspend or terminate accounts, at our discretion and without prior notice.

7. AI-generated advice, no warranty of accuracy

The strategy advice, tile recognition, and other AI outputs are provided "as is" for informational and entertainment purposes. They may be incomplete, incorrect, or unsuitable for a given situation. You should verify advice against your own judgment and your physical card. We do not warrant that the app will be error-free, uninterrupted, or that any outcome will result from following its suggestions.

8. Disclaimers

To the maximum extent permitted by law, the app is provided "as is" and "as available," without warranties of any kind, express or implied, including implied warranties of merchantability, fitness for a particular purpose, title, and non-infringement. We do not warrant that the app will meet your requirements or be available at any particular time.

9. Limitation of liability

To the maximum extent permitted by law, Inkwell Solutions, LLC and its officers, employees, and suppliers will not be liable for any indirect, incidental, special, consequential, or punitive damages, or for any loss of data, profits, or goodwill, arising out of or related to your use of the app. Our total aggregate liability for any claim relating to the app will not exceed the greater of the amount you paid us for the app in the twelve (12) months before the claim, or USD $50. Some jurisdictions do not allow certain limitations, so some of these may not apply to you.

10. Termination

You may stop using the app and delete your account at any time (see the Privacy Policy, section 6, for in-app account deletion). We may suspend or terminate your access if you violate these Terms, if required by law, or if we discontinue the app. On termination, the license in section 3 ends; sections that by their nature should survive (including sections 5 through 9, 11, and 12) survive.

11. Changes to these Terms

We may update these Terms from time to time. When we make material changes, we will update the effective date and, where appropriate, notify you in the app. Your continued use of the app after the changes take effect means you accept the updated Terms.

12. Governing law and disputes

These Terms are governed by applicable law, without regard to conflict-of-laws rules. Any dispute arising out of or relating to these Terms or the app will be resolved in a court of competent jurisdiction, except where applicable law gives you the right to bring a claim elsewhere.

13. Apple App Store and Google Play terms

If you download the app from the Apple App Store or Google Play, your use is also subject to that platform's terms. For Apple, the standard Apple Licensed Application End User License Agreement applies and, where it conflicts with these Terms for an Apple-distributed copy, Apple's terms control to the extent of the conflict. Apple and Google are third-party beneficiaries of these Terms with the right to enforce them against you with respect to their platform's distribution.

14. Contact

Questions about these Terms: support@crakdotbam.app. Moderation or abuse concerns: abuse@crakdotbam.app.

Inkwell Solutions, LLC ([address]).

Crak Dot Bam is an independent training tool and live-play companion. It is not affiliated with or endorsed by the National Mah Jongg League, the American Mah Jongg Society, Apple Inc., or Google LLC.