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Terms of Service

Article 1 (General Provisions)

These Terms of Service (hereinafter referred to as "Terms") set forth the terms and conditions for the use of the mahjong score management application "MemoJong" (hereinafter referred to as the "App") and related services provided by MemoJong Administration (hereinafter referred to as the "Company").

By using the App (including downloading, installing, registering an account, etc.), the User is deemed to have agreed to all provisions of these Terms.

In the event of any discrepancy between the content of these Terms and any explanation of the App outside of these Terms, the provisions of these Terms shall prevail.

Article 2 (Definitions)

The terms used in these Terms are defined as follows:

  • "User" means any individual or legal entity that uses the App.
  • "Subscription" means a service that allows the use of valid paid features of the App by paying a usage fee for a certain period.
  • "Registered Data" means information such as match results, notes, and images entered by the User into the App.

Article 3 (Use of the App and Self-Responsibility)

The User shall use the App at their own responsibility and judgment.

The User shall prepare smartphones, communication equipment, communication lines, etc. necessary for using the App at their own expense and responsibility. The Company is not involved in and bears no responsibility for the User's usage environment.

The User shall bear full responsibility for the entry and management of Registered Data. The Company does not guarantee the accuracy, completeness, or legality of the data entered by the User.

Article 4 (Subscription Service)

Usage Fees and Payment

Usage fees and payment methods for Subscriptions shall be in accordance with the payment means and terms specified by platform operators such as Apple Inc. (App Store) or Google LLC (Google Play).

Automatic Renewal

Subscriptions will strictly automatically renew for the same period and conditions, and usage fees will be billed, unless the User cancels the subscription at least 24 hours before the end of the validity period.

Cancellation Method

Cancellation is not completed by uninstalling the App or deleting the account. The User must perform the procedure to turn off automatic renewal from the prescribed management screen of the platform used (App Store or Google Play).

Refunds

Except as required by law, the Company will not refund usage fees already paid (including prorated calculations) for any reason.

Price Changes

The Company may change the price of the Subscription at its discretion. Price changes will apply from the next renewal onwards, and if the User does not agree to the change, they shall cancel the subscription before the renewal.

Article 5 (Display of Advertisements)

The Company may display advertisements of the Company or third parties on the App.

The User agrees to the display of advertisements when using the App.

Transactions in third-party advertisements (including linked sites) included in the App are conducted at the responsibility of the User and said third party. The Company bears no responsibility for the content of the advertisements, the safety of linked sites, or any damages arising from such transactions.

Article 6 (Intellectual Property Rights and Data Rights)

All copyrights, patent rights, trademark rights, and other intellectual property rights related to the App belong to the Company or those who have granted licenses to the Company.

The User shall not analyze the App by disassembly, decompilation, reverse engineering, etc.

Regarding data registered by the User (score records, etc.), the Company may use it free of charge and indefinitely for the purpose of improving the Company's services, marketing, or providing it to third parties, after processing it into a statistical format that cannot identify the User.

Article 7 (Prohibited Acts)

In using the App, the User shall not engage in the following acts:

  • Acts that violate laws and regulations or public order and morals.
  • Acts related to criminal activities.
  • Acts that destroy or interfere with the functions of the Company's servers or networks.
  • Acts that intentionally exploit bugs in the App (cheating).
  • Acts of collecting or accumulating personal information, etc. of other Users.
  • Acts that may interfere with the operation of the App.
  • Other acts that the Company deems inappropriate.

Article 8 (Suspension of Service, etc.)

The Company may suspend or interrupt the provision of all or part of the App without prior notice to the User if it determines that any of the following grounds exist:

  • When performing maintenance inspections or updates of the computer system related to the App.
  • When the provision of the App becomes difficult due to force majeure such as earthquakes, lightning, fires, power outages, or natural disasters.
  • When computers or communication lines, etc. stop due to an accident.
  • Otherwise, when the Company determines that the provision of the App is difficult.

The Company shall not be liable for any disadvantages or damages suffered by the User or a third party due to the suspension or interruption of the provision of the App.

Article 9 (Disclaimer)

No Warranty

The Company does not expressly or impliedly warrant that the App is free from de facto or legal defects (including defects related to safety, reliability, accuracy, completeness, effectiveness, fitness for a particular purpose, security, etc., errors, bugs, infringement of rights, etc.).

Data Loss

The Company does not guarantee the preservation of data registered by the User. The User shall back up data at their own responsibility, and the Company assumes no responsibility for data recovery or damages even if data is lost due to system failure, equipment failure, operation error, etc.

Calculation Results

The results of score calculations, performance aggregation, etc. by the App are merely reference values, and their accuracy is not guaranteed. The Company is not involved in any monetary or mental troubles arising between Users due to errors in calculation results.

Disputes with Third Parties

The Company assumes no responsibility for any transactions, communications, disputes, etc. arising between the User and other Users or third parties regarding the App.

Article 10 (Limitation of Liability)

Even if the provisions exempting the Company from liability for damages in Article 9 or other provisions of these Terms are determined to be invalid due to the application of the Consumer Contract Act or other reasons, the Company shall be liable for damages caused to the User by the Company's negligence (excluding gross negligence) within the following scope:

  • Damages subject to compensation shall be limited to direct and ordinary damages that actually occurred, and shall not include damages arising from special circumstances (including lost profits, mental distress due to data loss, etc.).
  • The upper limit of the compensation amount shall be the amount of usage fees paid by the User to the Company in the month in which the damage occurred.

If there is intentional or gross negligence on the part of the Company, the limitation in the preceding paragraph shall not apply.

Article 11 (Changes to Terms of Service)

The Company may change these Terms at any time without notice to the User if deemed necessary.

The modified Terms shall take effect from the time they are posted within the App or on the Company's website.

Users who continue to use the App after changes to these Terms shall be deemed to have agreed to the modified Terms.

Article 12 (Handling of Personal Information)

The Company shall appropriately handle personal information obtained through the use of the App in accordance with the Company's "Privacy Policy". The User agrees that the Company will handle user information in accordance with said Privacy Policy when using the App.

Article 13 (Governing Law and Jurisdiction)

The interpretation of these Terms shall be governed by the laws of Japan.

In the event of a dispute regarding the App, the district court having jurisdiction over the location of the Company's head office (or address if a sole proprietorship) shall be the exclusive agreed court of jurisdiction.

Enacted: December 29, 2025

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