Terms of Service

Last updated: March 10, 2026

These Terms of Service (hereinafter referred to as "these Terms") govern the use of the MoodRing application (hereinafter referred to as "this App") provided by Akira Kawata (hereinafter referred to as "we" or "us"). Please read these Terms carefully before using this App.

Article 1 (Application)

  1. These Terms define the rights and obligations between us and the user regarding the use of this App.
  2. By using this App, the user is deemed to have agreed to these Terms.
  3. This App is intended for users aged 13 and older. Users under 13 years of age should not use this App.

Article 2 (Parties to the Agreement)

  1. These Terms are concluded between us and the user only, and not with Apple Inc. (hereinafter referred to as "Apple").
  2. We are solely responsible for this App and its content, and Apple bears no responsibility.
  3. These Terms do not provide for usage rules that are in conflict with the Apple Media Services Terms and Conditions.

Article 3 (Scope of License)

  1. We grant the user a non-exclusive, non-transferable, revocable license to use this App solely for personal, non-commercial purposes.
  2. This license is limited to using this App on any Apple-branded products that the user owns or controls.
  3. The user shall not modify, reproduce, distribute, sell, lend, transfer, or sublicense this App.
  4. The user shall not attempt to reverse engineer, disassemble, decompile, or analyze the source code of this App.
  5. If the user transfers or sells the device on which this App is installed to a third party, the user must delete this App in advance.
  6. This App may be accessed and used by other accounts associated with the purchaser via Family Sharing or volume purchasing.

Article 4 (Maintenance and Support)

  1. We are solely responsible for providing any maintenance and support services with respect to this App.
  2. The user acknowledges that Apple has no obligation whatsoever to furnish any maintenance and support services with respect to this App.
  3. For inquiries or support requests regarding this App, please contact us at the contact information specified in Article 16.

Article 5 (Warranty)

  1. This App is provided "as is", and we make no express or implied warranties that this App is fit for a particular purpose, accurate, complete, or error-free.
  2. In the event of any failure of this App to conform to any applicable warranty, the user may notify Apple, and Apple will refund the purchase price for this App to the user.
  3. To the maximum extent permitted by applicable law, Apple will have no other warranty obligation whatsoever with respect to this App, and any other claims, losses, liabilities, damages, costs or expenses attributable to any failure to conform to any warranty will be our sole responsibility.
  4. We make no warranties regarding the functionality, information, design, availability, or reliability of this App.
  5. Users use this App at their own risk, and we are not responsible for any damages arising from the use of this App.

Article 6 (Product Claims)

  1. The user acknowledges that we are responsible for addressing any claims of the user or any third party relating to this App or the end-user possession and/or use of this App, including but not limited to: (i) product liability claims; (ii) any claim that this App fails to conform to any applicable legal or regulatory requirement; and (iii) claims arising under consumer protection, privacy, or similar legislation.
  2. Apple bears no responsibility for these claims.

Article 7 (Intellectual Property Rights)

  1. All content contained in this App (including text, graphics, logos, icons, images, software, etc.) is owned by us or our content providers and is protected by copyright laws.
  2. Users may not use the content of this App except as expressly permitted by these Terms.
  3. In the event of any third party claim that this App or the user possession and use of this App infringes that third party intellectual property rights, we will be solely responsible for the investigation, defense, settlement and discharge of any such intellectual property infringement claim. Apple bears no responsibility.

Article 8 (Legal Compliance)

  1. The user represents and warrants that:
    • he/she is 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;
    • he/she is not listed on any U.S. Government list of prohibited or restricted parties.
  2. The user shall use this App in compliance with all applicable laws and regulations.

Article 9 (Prohibited Activities)

When using this App, the user shall not engage in the following activities:

  • Acts that violate laws or public order and morals
  • Acts related to criminal activities
  • Acts that destroy or interfere with our servers or network functions
  • Unauthorized access using our services
  • Harassment, defamation, or threats against other users or third parties
  • Unauthorized use of other users accounts
  • Unauthorized tampering with information in this App
  • Reverse engineering, decompiling, disassembling, or similar acts
  • Use of this App for commercial purposes
  • Other acts deemed inappropriate by us

Article 10 (Group Features)

  1. This App provides features that allow users to create groups, invite other users, and share mood records.
  2. Mood entries (scores and comments) within a group are shared among group members.
  3. Group owners can manage the group (invite members, disband the group, etc.).
  4. Group members may leave the group at any time.

Article 11 (Suspension or Termination of Service)

  1. We may suspend or terminate all or part of this App without prior notice to the user if we determine that any of the following grounds exist:
    • For maintenance or construction of this App facilities
    • When this App experiences a failure
    • When provision of this App becomes difficult due to force majeure such as fire, power outage, or natural disasters
    • Other cases where we determine that provision of this App is difficult
  2. We shall not be liable for any damages incurred by the user due to suspension or termination of this App.

Article 12 (Account Suspension or Usage Restrictions)

  1. We may suspend the users account or restrict their use of this App without prior notice if we determine that the user falls under any of the following grounds:
    • Violation of any provision of these Terms
    • Discovery of false information in the registration details
    • Other cases where we deem the use of this App inappropriate
  2. We shall not be liable for any damages incurred by the user due to actions taken by us based on this Article.

Article 13 (Privacy and Data Protection)

  1. We handle users personal information appropriately in accordance with our Privacy Policy.
  2. This App uses the following services to collect and store data:
    • Firebase Authentication: For user authentication
    • Cloud Firestore: For storing user data
    • Google Analytics 4: For analyzing app usage
    • Google AdMob: For advertising
  3. Please refer to the respective official websites for the privacy policies of each service.

Article 14 (Third Party Terms of Agreement)

The user must comply with applicable third party terms of agreement when using this App (e.g., wireless data service agreement).

Article 15 (Limitation of Liability)

  1. We shall not be liable for any damages incurred by the user as a result of using this App.
  2. Notwithstanding the preceding paragraph, except in cases where we have intent or gross negligence, our maximum liability for damages shall be limited to the total amount of usage fees paid by the user to this App in the last three months (or 1,000 yen if such amount is less than 1,000 yen).
  3. We shall not be liable under any circumstances for inability to use this App, loss of data, business interruption, lost profits, or other indirect, incidental, or consequential damages.

Article 16 (Contact Information)

For inquiries regarding this App, please contact us at:

  • Operator: Akira Kawata
  • Address: 960-2 Nishihirai, Nagareyama-shi, Chiba-ken 270-0156, Japan
  • Phone: +81 70 9009 0565
  • Email: eeref0309+moodring@gmail.com

Article 17 (Governing Law and Jurisdiction)

  1. These Terms shall be governed by and construed in accordance with the laws of Japan.
  2. The Chiba District Court shall have exclusive jurisdiction as the court of first instance for any disputes arising from this service.

Article 18 (Severability)

If any provision of these Terms or part thereof is deemed invalid by laws or regulations, the remaining provisions excluding the invalid part shall continue to be valid and in effect.

Article 19 (Third Party Beneficiary)

These Terms constitute a contract between us and the user and do not grant any rights to third parties. However, Apple Inc. and its subsidiaries are third party beneficiaries of these Terms. Upon the user acceptance of the terms and conditions of these Terms, Apple will have the right (and will be deemed to have accepted the right) to enforce these Terms against the user as a third party beneficiary thereof.