Terms of Use

Terms of Use / End User License Agreement (EULA)

Effective Date: April 23, 2026

Article 1 (Purpose) These Terms of Use / End User License Agreement (the “Terms”) set forth the rights, obligations, responsibilities, and other necessary matters between MANANASYSTEM (the “Company,” “we,” “us,” or “our”) and users regarding the use of the mobile application “Manana Japanese” and related services (the “Service”).

By downloading, installing, accessing, or using the app, you are deemed to have agreed to these Terms. If you do not agree to these Terms, you may not use the Service.

Article 2 (Definitions)

  1. “Service” means the Manana Japanese app and related features provided by the Company, regardless of device type.
  2. “User” means any person who accesses or uses the Service in accordance with these Terms.
  3. “Premium Subscription” means paid features and benefits provided by the Company, including the removal of certain learning limits, expanded functionality, and other premium benefits.
  4. “Content” means vocabulary, kanji, grammar, reading materials, example sentences, translations, analysis results, UI, images, databases, and other materials provided within the Service.

Article 3 (Effect and Changes to the Terms)

  1. These Terms become effective when posted within the Service, on the Company’s website, or by other appropriate means.
  2. The Company may revise these Terms to the extent permitted by applicable laws and regulations.
  3. If the Company changes these Terms, the Company will notify users of the changes and the effective date through an in-app notice, the Company’s website, or other appropriate means.
  4. If a user continues to use the Service after the effective date of the revised Terms, the user will be deemed to have agreed to the revised Terms.

Article 4 (Provision and Changes to the Service)

  1. The Company provides Japanese learning features, including vocabulary, kanji, grammar, reading content, flashcards, review, search, and sentence analysis.
  2. The Company may change, suspend, or terminate all or part of the Service for service improvement, operational needs, technical reasons, content updates, or other reasonable grounds.
  3. The Company will make reasonable efforts to provide a stable Service. However, use of the Service may be temporarily limited due to network failures, server failures, third-party service failures, app store policy changes, or other circumstances.

Article 5 (Premium Subscription and Payment)

  1. The Premium Subscription is an auto-renewable subscription product. The title, duration, price, and benefits of the subscription are displayed on the in-app purchase screen or in the applicable app store.
  2. Payment will be charged to the user’s Apple ID, Google Play account, or other store account selected by the user at confirmation of purchase.
  3. Auto-renewable subscriptions may renew automatically unless canceled at least 24 hours before the end of the current subscription period.
  4. The renewal charge may be billed to the user’s account within 24 hours before the end of the current subscription period.
  5. Users may manage or cancel auto-renewal through the account settings of the app store where the purchase was made.
  6. Subscriptions purchased through the Apple App Store can be managed in “Settings > Apple ID > Subscriptions” on the user’s device.
  7. Subscriptions purchased through Google Play can be managed in “Payments & subscriptions > Subscriptions” in the Google Play Store.
  8. If a free trial or discount offer is provided, the applicable conditions and duration will be displayed on the in-app purchase screen or in the applicable app store.
  9. If a free trial period is provided, any unused portion of the free trial may be forfeited when the user starts a paid subscription.
  10. Cancellations and refunds are handled according to the policies and procedures of the app store where the purchase was made. The Company does not directly control the payment or refund process of the app stores.

Article 6 (User Obligations) Users must not engage in any of the following acts:

  1. Hacking or attempting unauthorized access to the Company’s servers, systems, or networks.
  2. Excessively calling sentence analysis APIs or other features through automated tools, scripts, crawlers, or other abnormal methods.
  3. Reverse engineering, decompiling, disassembling, extracting source code, extracting databases, bypassing security measures, or modifying the app.
  4. Reproducing, distributing, selling, renting, transmitting, or creating derivative works from the app or Content without authorization.
  5. Infringing the rights of others or the intellectual property rights of the Company.
  6. Violating applicable laws, public order and morals, or these Terms.
  7. Otherwise interfering with the normal operation of the Service.

Article 7 (Intellectual Property Rights)

  1. Copyrights and other intellectual property rights in the Service, Content, design, UI/UX, text, analysis logic, databases, logos, and software provided by the Company belong to the Company or the rightful owners.
  2. Users may use the Service only for personal and non-commercial learning purposes.
  3. Without the Company’s prior written consent, users may not use information obtained through the Service for commercial purposes, including reproduction, transmission, publication, distribution, broadcasting, sale, rental, modification, or creation of derivative works.

Article 8 (License to Use)

  1. The Company grants users a non-exclusive, non-transferable, revocable, limited license to use the Service in accordance with these Terms.
  2. If the app is downloaded through the Apple App Store, this license is limited to use of the app on Apple-branded products that the user owns or controls, as permitted by the Usage Rules set forth in the Apple Media Services Terms and Conditions.
  3. Users must comply with applicable third-party terms, app store terms, payment service terms, and network service terms when using the Service.

Article 9 (Limitation of Liability)

  1. The Company will make reasonable efforts to provide a stable Service. However, the Company is not responsible for failure to provide the Service due to events beyond its reasonable control, including natural disasters, failures of server providers, network failures, failures of the Apple App Store or Google Play, or failures of third-party APIs.
  2. The Company does not guarantee the complete accuracy or reliability of Japanese morphological analysis, furigana, translations, example sentences, learning recommendations, or review results provided by the Service.
  3. The Company does not guarantee any specific learning outcome, exam success, or achievement of a particular language proficiency level.
  4. Users are solely responsible for the results of using information obtained through the Service.
  5. The Company is not responsible for service interruptions or damages caused by reasons attributable to the user.

Article 10 (Additional Terms Related to Apple)

  1. These Terms are entered into between the Company and the user only, and Apple is not a party to these Terms.
  2. The Company is solely responsible for the app, its Content, maintenance, and support. Apple has no obligation to provide maintenance or support services for the app.
  3. Apple and Apple’s subsidiaries are third-party beneficiaries of these Terms. Upon the user’s acceptance of these Terms, Apple will have the right to enforce these Terms against the user as a third-party beneficiary.
  4. The user represents and warrants that the user is not located in a country or region subject to a U.S. Government embargo or designated by the U.S. Government as a “terrorist supporting” country or region, and that the user is not listed on any U.S. Government list of prohibited or restricted parties.

Article 11 (Privacy)

  1. The Company may process personal information or usage information to the extent necessary to provide the Service.
  2. Details regarding the processing of personal information are governed by the Company’s Privacy Policy.
  3. The Privacy Policy is available at the following link:

Privacy Policy: Link

Article 12 (Contact and Support) For inquiries regarding the Service, subscriptions, these Terms, privacy, or other matters, users may contact the Company through the following channels:

Company Name: MANANASYSTEM
Website: https://en.mananasystem.com
Feedback and Reports: admin@mananasystem.com

Article 13 (Governing Law and Jurisdiction)

  1. These Terms are governed by and interpreted in accordance with the laws of the Republic of Korea.
  2. In the event of a dispute between the Company and a user in connection with the use of the Service, both parties will attempt to resolve the dispute in good faith through consultation.
  3. If the dispute cannot be resolved through consultation, it will be resolved by a court having jurisdiction under applicable laws.

Supplementary Provision These Terms are effective as of April 23, 2026.