Terms of Use

By accessing or using Lanma (the “Service”), operated by ETHEIA LLC (“Lanma,” “we,” “us,” or “our”), you agree to be bound by these Terms of Use (“Terms”). If you do not agree to these Terms, you must not access or use the Service.

These Terms constitute a legally binding agreement between you and Lanma. By creating an account, accessing, or using the Service in any manner, you acknowledge that you have read, understood, and agree to be bound by these Terms, as well as our Privacy Policy, which is incorporated herein by reference.

You must be at least 16 years of age to use the Service. If you are under 18 (or the age of legal majority in your jurisdiction), you may only use the Service with the consent and supervision of a parent or legal guardian who agrees to be bound by these Terms.

By using the Service, you represent and warrant that you meet the eligibility requirements set forth in this section. We reserve the right to request proof of age or parental consent at any time.

To access certain features of the Service, you must create an account. You agree to provide accurate, current, and complete information during registration, and to update such information to keep it accurate, current, and complete.

You are solely responsible for safeguarding your account credentials and for all activities that occur under your account. You must notify us immediately at support if you become aware of any unauthorized use of your account. We are not liable for any loss or damage arising from your failure to maintain the confidentiality of your account credentials.

Lanma is a vocabulary learning platform that enables users to create, manage, and study word sets through flashcards, quizzes, and other study modes. The Service may include free and paid subscription tiers with different feature sets and usage limits.

5.1 Free and Paid Plans. The Service offers a free tier with limited features and paid subscription plans (“Pro” and “Premium”) with enhanced capabilities. Each paid plan provides different usage limits and feature access. Details of each plan, including pricing and features, are described on our pricing page.

5.2 Billing. Paid subscriptions are billed in advance on a recurring basis (monthly or annually, depending on the plan you select). Payment is processed through our third-party payment processor, Stripe. By subscribing to a paid plan, you authorize us to charge the applicable fees to your designated payment method.

5.3 Automatic Renewal. Your subscription will automatically renew at the end of each billing period unless you cancel it before the renewal date. You may cancel your subscription at any time through your account settings or the Stripe billing portal.

5.4 Refunds. Payments are generally non-refundable. However, refund requests may be considered on a case-by-case basis in accordance with applicable consumer protection laws in your jurisdiction, including but not limited to the EU Consumer Rights Directive, the Korean Consumer Protection Act, and similar legislation.

5.5 Price Changes. We reserve the right to modify subscription pricing. Any price changes will be communicated to you at least 30 days in advance and will take effect at the start of your next billing cycle.

6.1 Your Content. You retain ownership of all content you create, upload, or submit through the Service, including word sets, vocabulary entries, notes, and other materials (“User Content”).

6.2 License Grant. By submitting User Content to the Service, you grant us a worldwide, non-exclusive, royalty-free license to use, store, reproduce, modify, and display your User Content solely for the purposes of operating, maintaining, and improving the Service. If you make User Content publicly available (e.g., public word sets), you grant other users a non-exclusive right to view and study that content through the Service.

6.3 AI Training. We may use anonymized and aggregated User Content to train, improve, or develop artificial intelligence and machine learning models in the future. We will provide notice before implementing any such use and will update these Terms and our Privacy Policy accordingly. You will have the opportunity to opt out of AI training use where required by applicable law.

6.4 Content Responsibility. You are solely responsible for your User Content and the consequences of posting or sharing it. You represent and warrant that you own or have the necessary rights to submit your User Content and that it does not violate any third-party rights or applicable laws.

6.5 Copyright Restrictions. You must not upload, share, or distribute any content through the Service that infringes the copyright or other intellectual property rights of any third party. This includes, but is not limited to, song lyrics, book passages, articles, translations, images, or any other copyrighted material for which you do not have authorization from the rights holder. Content that falls under fair use or equivalent exceptions in your jurisdiction may be permissible, but you bear full responsibility for making that determination.

6.6 Platform Disclaimer for User Content. Lanma acts as an online service provider and does not review, endorse, or assume responsibility for User Content uploaded or shared by its users. We do not monitor all User Content and make no representations or warranties regarding its accuracy, legality, or non-infringement. To the fullest extent permitted by applicable law, Lanma disclaims all liability for User Content under applicable safe harbor and intermediary liability protections, including but not limited to the U.S. Digital Millennium Copyright Act (DMCA), the EU Digital Services Act (DSA), and the Korean Act on Promotion of Information and Communications Network Utilization and Information Protection.

6.7 Right to Remove Content. We reserve the right to remove, disable access to, or restrict any User Content at any time and without prior notice if we believe, in our sole discretion, that such content may infringe the intellectual property rights of others or otherwise violate these Terms or applicable law.

6.8 Third-Party AI and Speech Services. Certain features rely on third-party artificial intelligence, machine learning, and speech-processing infrastructure (which may include providers such as Groq, Anthropic (Claude), OpenAI (ChatGPT-class services), or Google (Gemini or similar), among others, and may change over time). The categories of data shared and how those providers are engaged are described in our Privacy Policy (including Section 7). By using AI-powered, transcription, or related features, you direct us to submit the minimum content reasonably necessary to those providers to perform the feature on our behalf.

7.1 Deletion. When you delete word sets or other content through the Service, it is permanently deleted from our servers.

7.2 Account Deletion. You may request deletion of your account at any time through your profile settings. Upon account deletion, we will delete or anonymize your personal data in accordance with our Privacy Policy, subject to any legal retention obligations.

7.3 Backup Retention. Residual copies of your data may remain in our backup systems for a limited period after deletion, in accordance with our standard backup and disaster recovery procedures.

You agree not to:

• Use the Service for any unlawful purpose or in violation of any applicable law or regulation;
• Upload or share content that is defamatory, obscene, hateful, discriminatory, or that infringes upon the rights of others;
• Upload, reproduce, or distribute copyrighted material (including song lyrics, book excerpts, articles, or translations) without proper authorization from the rights holder;
• Attempt to gain unauthorized access to the Service, other users' accounts, or our systems;
• Use automated means (bots, scrapers, crawlers) to access or collect data from the Service without our prior written consent;
• Interfere with or disrupt the integrity or performance of the Service;
• Reverse engineer, decompile, or disassemble any portion of the Service;
• Circumvent any usage limits, access controls, or security features of the Service;
• Resell, redistribute, or commercially exploit any portion of the Service without our prior written consent.

9.1 Notice and Takedown. If you are a copyright owner or authorized agent and believe that content available on the Service infringes your copyright, you may submit a takedown notice to us at [email protected]. Your notice must include: (a) a description of the copyrighted work you claim has been infringed; (b) identification of the material on the Service that you believe is infringing, with sufficient detail for us to locate it; (c) your contact information (name, address, email, phone number); (d) a statement that you have a good-faith belief that the use of the material is not authorized by the copyright owner, its agent, or the law; (e) a statement, under penalty of perjury, that the information in your notice is accurate and that you are the copyright owner or authorized to act on the owner's behalf; and (f) your physical or electronic signature.

9.2 Response to Notices. Upon receipt of a valid takedown notice, we will promptly investigate and, if appropriate, remove or disable access to the allegedly infringing content. We may notify the user who posted the content and provide them with an opportunity to submit a counter-notice if they believe the content was removed in error.

9.3 Counter-Notice. If you believe your content was removed by mistake or misidentification, you may submit a counter-notice to [email protected] containing: (a) identification of the content that was removed and its location before removal; (b) a statement under penalty of perjury that you have a good-faith belief the content was removed as a result of mistake or misidentification; (c) your name, address, and phone number; (d) a statement that you consent to the jurisdiction of the courts in the Republic of Korea (or your local jurisdiction if required by law); and (e) your physical or electronic signature.

9.4 Repeat Infringers. We maintain a policy of terminating or suspending the accounts of users who are determined to be repeat infringers of copyright. A user may be deemed a repeat infringer if they receive multiple valid takedown notices or if we otherwise determine, in our sole discretion, that they have repeatedly uploaded infringing content.

9.5 DMCA Compliance. Lanma complies with the Digital Millennium Copyright Act (17 U.S.C. § 512). We have registered a designated agent with the U.S. Copyright Office to receive notifications of claimed infringement. For full details regarding our designated agent, takedown notice requirements, counter-notification procedures, and repeat infringer policy, please see our DMCA Policy.

The Service, including its design, logos, text, graphics, software, and all other content (excluding User Content), is the property of Lanma and is protected by copyright, trademark, and other intellectual property laws. You may not copy, modify, distribute, or create derivative works based on the Service or its content without our prior written consent.

11.1 THE SERVICE IS PROVIDED “AS IS” AND “AS AVAILABLE” WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS, IMPLIED, OR STATUTORY, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.

11.2 We do not warrant that the Service will be uninterrupted, error-free, or secure, or that any defects will be corrected. We do not guarantee the accuracy, completeness, or usefulness of any content, including vocabulary definitions, translations, or examples provided through the Service.

11.3 The Service is an educational tool and is not a substitute for professional language instruction, translation services, or academic guidance.

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL LANMA, ITS DIRECTORS, OFFICERS, EMPLOYEES, AGENTS, OR AFFILIATES BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS, DATA, USE, GOODWILL, OR OTHER INTANGIBLE LOSSES, RESULTING FROM:

• Your access to, use of, or inability to access or use the Service;
• Any conduct or content of any third party on the Service;
• Unauthorized access, use, or alteration of your transmissions or content;
• Any other matter relating to the Service.

OUR TOTAL AGGREGATE LIABILITY FOR ALL CLAIMS ARISING OUT OF OR RELATING TO THESE TERMS OR THE SERVICE SHALL NOT EXCEED THE GREATER OF (A) THE AMOUNTS YOU HAVE PAID TO US IN THE TWELVE (12) MONTHS PRECEDING THE CLAIM, OR (B) ONE HUNDRED US DOLLARS (USD $100).

NOTHING IN THESE TERMS SHALL EXCLUDE OR LIMIT LIABILITY THAT CANNOT BE EXCLUDED OR LIMITED UNDER APPLICABLE LAW, INCLUDING LIABILITY FOR DEATH OR PERSONAL INJURY CAUSED BY NEGLIGENCE, FRAUD, OR FRAUDULENT MISREPRESENTATION.

You agree to indemnify, defend, and hold harmless ETHEIA LLC (Lanma) and its officers, directors, employees, and agents from and against any and all claims, liabilities, damages, losses, costs, and expenses (including reasonable attorneys' fees and legal costs) arising out of or in any way connected with: (a) your access to or use of the Service; (b) your User Content, including any claim that your User Content infringes or misappropriates the copyright, trademark, or other intellectual property rights of any third party; (c) your violation of these Terms; or (d) your violation of any applicable law or any rights of a third party. This indemnification obligation survives the termination of your account and these Terms.

14.1 Global Availability. The Service is available to users worldwide. By accessing the Service, you agree to comply with all applicable local, national, and international laws and regulations.

14.2 European Union Users. If you are located in the European Economic Area (EEA), United Kingdom, or Switzerland, you have certain rights under the General Data Protection Regulation (GDPR) and related legislation. Nothing in these Terms limits your statutory rights as a consumer under applicable EU/EEA law, including your right of withdrawal under the Consumer Rights Directive (2011/83/EU).

14.3 South Korean Users. If you are located in South Korea, these Terms are subject to the Korean Personal Information Protection Act (PIPA), the Act on Consumer Protection in Electronic Commerce, and other applicable Korean laws. Mandatory consumer protections under Korean law shall apply regardless of any contrary provisions in these Terms.

14.4 Users in the Americas. If you are located in the Americas, applicable consumer protection laws of your jurisdiction apply. For users in Brazil, the Brazilian Consumer Defense Code (CDC) and the Lei Geral de Proteção de Dados (LGPD) shall apply. For users in California, USA, the California Consumer Privacy Act (CCPA) provides additional privacy rights as described in our Privacy Policy.

14.5 Asian Users. If you are located in Japan, the Act on Specified Commercial Transactions and the Act on the Protection of Personal Information (APPI) apply. For users in other Asian jurisdictions, applicable local data protection and consumer protection laws shall apply.

We may suspend or terminate your access to the Service at any time, with or without cause, and with or without notice. Upon termination, your right to use the Service ceases immediately. Sections of these Terms that by their nature should survive termination (including but not limited to Sections 6, 7, 9, 11, 12, 13, and 17) shall survive.

You may terminate your account at any time by using the account deletion feature in your profile settings. If you have an active paid subscription, cancellation of your subscription is separate from account deletion and should be done prior to deleting your account.

Without limiting the foregoing, we will suspend or terminate the accounts of users who repeatedly upload or share content that infringes the intellectual property rights of others, in accordance with our Copyright Policy described in Section 9.

We reserve the right to modify these Terms at any time. If we make material changes, we will notify you by posting the updated Terms on the Service and updating the “Last updated” date. For material changes that adversely affect your rights, we will provide at least 30 days' notice via email or in-app notification before the changes take effect. Your continued use of the Service after the effective date constitutes your acceptance of the updated Terms.

17.1 Governing Law. These Terms shall be governed by and construed in accordance with the laws of the Republic of Korea, without regard to its conflict of laws principles, except where overridden by mandatory local law in your jurisdiction.

17.2 Dispute Resolution. Any dispute arising out of or relating to these Terms or the Service shall first be attempted to be resolved through good-faith negotiation. If the dispute cannot be resolved through negotiation within 30 days, it shall be submitted to the exclusive jurisdiction of the courts of the Republic of Korea, unless mandatory law in your jurisdiction requires otherwise.

17.3 EU Dispute Resolution. If you are a consumer in the EU, you may also use the European Online Dispute Resolution (ODR) platform available at https://ec.europa.eu/consumers/odr.

18.1 Severability. If any provision of these Terms is held to be invalid, illegal, or unenforceable, the remaining provisions shall remain in full force and effect.

18.2 Waiver. Our failure to enforce any right or provision of these Terms shall not constitute a waiver of such right or provision.

18.3 Entire Agreement. These Terms, together with our Privacy Policy, constitute the entire agreement between you and Lanma regarding the Service and supersede all prior agreements and understandings.

18.4 Assignment. You may not assign or transfer your rights or obligations under these Terms without our prior written consent. We may assign our rights and obligations under these Terms without restriction.

18.5 Language. These Terms are provided in English. In the event of any conflict between the English version and any translation, the English version shall prevail to the extent permitted by applicable law.

If you have any questions about these Terms of Use, please contact us at:

ETHEIA LLC (Lanma)
Email: [email protected]