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. The app is not directed to children under 13, and we do not knowingly collect personal information from children under 13. If we learn that we have collected such information, we will delete it; if you believe a child under 13 has used the app, contact us at privacy@crakdotbam.app.

If you are between 13 and 17 (or below the age of majority where you live), you may use the app only with the consent and supervision of a parent or legal guardian, and by using the app you represent that a parent or legal guardian has reviewed and agreed to these Terms on your behalf. That parent or guardian is responsible for your use of the app and 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), which is not available to anyone under 18. We collect a self-declared age (birth year) at sign-up and derive a coarse 13+/18+ flag to enforce these limits; providing false age information is a breach of these Terms. 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 Google Play testing period the app is free and no subscription is charged. When the app launches publicly, it is a paid product offered by auto-renewing subscription — there is no permanent free tier — and the billing terms below apply.

The plans below are the currently planned offerings. Before you confirm any subscription, the platform's in-app purchase screen clearly and conspicuously presents the exact plan name, the price and billing period, the free-trial length (if any), and the automatic-renewal terms, and you must take an affirmative action to purchase. That on-screen disclosure controls if it differs from the table below. After purchase, the platform sends you a confirmation that includes how to cancel:

• Purchases are made through the platform. Subscriptions are sold and billed through the Apple App Store or Google Play in-app purchase system — we never receive, process, or store your payment-card details. Payment is charged to your Apple or Google account at confirmation of purchase.
• Auto-renewal — your affirmative consent. Subscriptions are auto-renewing. By confirming a subscription you authorize the platform to automatically renew it and charge your account the then-current price at the start of each new period (each month for a monthly plan, each year for an annual plan), until you cancel. Renewal occurs automatically unless you cancel at least 24 hours before the end of the current period.
• Free trials, then charge. If your plan includes a free trial, your paid subscription begins automatically and you are charged at the then-current price when the trial ends unless you cancel before then. Any unused portion of a free trial is forfeited when you purchase a subscription. The applicable trial length is shown to you before you start.
• How to cancel. You can cancel at any time in your Apple ID or Google Play account subscription settings; the cancellation takes effect at the end of the current paid period, and you keep access until then. Cancelling stops future renewals.
• Refunds. All purchases are processed by Apple or Google, and refunds are handled under their policies through your Apple or Google account. We do not process payments and cannot directly issue platform refunds.
• Offer codes and promotions. We may offer promotional or discounted pricing through platform offer codes. Promotional pricing applies only for the stated period; unless stated otherwise, the subscription then renews at the standard then-current price.
• Price changes. We may change subscription prices for future periods. Where a change would affect your renewals, we (or the platform) will notify you and obtain any consent required by the platform and by applicable law before the new price takes effect; you may cancel before it does.

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.

Copyright complaints. If you believe content available through the app infringes your copyright, send a notice with the information required by the U.S. Digital Millennium Copyright Act (DMCA) — identifying the copyrighted work, the allegedly infringing material and its location, your contact information, and the statements the DMCA requires — to our designated agent at abuse@crakdotbam.app. We respond to valid notices and may remove the material and terminate repeat infringers.

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, maintain, and provide the app's features to you, 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). We do not use your content to train third-party AI models. This license ends when you delete the content or your account, except that we may retain reasonable backup or transient copies for a limited period, and except for any content you have already shared with others.

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 use commercially reasonable efforts to act on credible reports of objectionable content or abusive behavior promptly, and typically within 24 hours — removing the violating content and/or ejecting the responsible user. We may also review, remove, or disable access to any content, and suspend or terminate accounts, at our discretion and without prior notice. To report content outside the app, contact abuse@crakdotbam.app.

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. Nothing in these Terms limits or excludes liability that cannot be limited or excluded under applicable law — including liability for fraud, gross negligence, willful misconduct, death or personal injury caused by negligence, or your non-waivable statutory consumer rights. 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 and 11 through 15, and the content-license provisions of section 6.1 to the extent stated there) 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 the laws of the State of Texas, without regard to its conflict-of-laws rules. Subject to any non-waivable right you have under the law of your home jurisdiction, you and we agree that any dispute arising out of or relating to these Terms or the app will be brought exclusively in the state or federal courts located in Harris County, Texas, and you consent to the personal jurisdiction of those courts — except where applicable consumer-protection law gives you the right to bring a claim in the courts of your own place of residence. If you are a consumer resident in the European Union or the United Kingdom, nothing in these Terms deprives you of the protection of the mandatory consumer-protection provisions of the law of your country of residence, and you may also be able to bring proceedings in your local courts.

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 copies obtained from the Apple App Store, these Terms are the end-user license agreement between you and us only, and Apple is not a party to it. To the extent these Terms grant you fewer rights, or impose terms less favorable to you, than Apple's Licensed Application End User License Agreement (the "Apple Standard EULA"), the Apple Standard EULA applies in their place for that Apple-distributed copy; where these Terms conflict with the Apple Standard EULA, Apple's terms control to the extent of the conflict. Apple has no obligation to provide support or maintenance for the app. In the event of any failure of the app to conform to any applicable warranty (to the extent not effectively disclaimed), you may notify Apple, and Apple will refund the purchase price (if any) for the app to you; to the maximum extent permitted by applicable law, Apple has no other warranty obligation whatsoever with respect to the app. You agree that any product warranty (to the extent not effectively disclaimed) and any product-liability, legal-compliance, or intellectual-property claim regarding the app is our responsibility, not Apple's, to the extent required by the Apple Standard EULA. You represent and warrant that you are not located in a country that is subject to a U.S. Government embargo, or that has been designated by the U.S. Government as a "terrorist-supporting" country, and that you are not listed on any U.S. Government list of prohibited or restricted parties. Apple and Google, and their subsidiaries, are third-party beneficiaries of these Terms and, upon your acceptance, will have the right (and will be deemed to have accepted the right) to enforce these Terms against you with respect to their platform's distribution.

14. Contact

Questions about these Terms or general support: support@crakdotbam.app. Moderation or abuse concerns: abuse@crakdotbam.app. Privacy, data, or account-deletion requests: privacy@crakdotbam.app (see our Privacy Policy).

These Terms are offered by Inkwell Solutions, LLC, the operator and seller of Crak Dot Bam, at [address].

15. General

These Terms, together with the Privacy Policy and any platform terms that apply to your copy of the app, are the entire agreement between you and us about the app and replace any prior understanding on that subject. If any provision of these Terms is held unenforceable, that provision will be limited or removed to the minimum extent necessary and the remaining provisions stay in full effect. Our failure to enforce any provision is not a waiver of it. You may not assign these Terms without our consent; we may assign them to an affiliate or in connection with a merger, acquisition, or sale of assets. Headings are for convenience only.

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.