Terakoya.AI
Legal

Terms of Service

These Terms of Service ("the Terms") set out the conditions for using the Terakoya desktop app, this website, the training and courses and the other services provided by Terakoya.AI Co., Ltd. ("the Company") (together, "the Services"). Customers using the Services ("Users") must use them in accordance with the Terms.

Article 1 (Application)

  1. The Terms apply to every relationship between Users and the Company concerning the use of the Services.
  2. The Company may set rules for using the Services in addition to the Terms ("Individual Provisions"). Whatever their name, Individual Provisions form part of the Terms.
  3. Where the Terms conflict with Individual Provisions, the Individual Provisions prevail unless they state otherwise.

Article 2 (Applying to Use the Services)

  1. A contract to use the Services is formed when an applicant agrees to the Terms, applies in the way the Company specifies, and the Company accepts.
  2. The Company may decline an application, without having to give reasons, if it judges that:
    • the application contains false information;
    • the applicant has previously breached the Terms; or
    • a contract is otherwise inappropriate.

Article 3 (Accounts and Outside Services)

  1. The Services use outside services that Users contract for themselves, such as accounts and services from Google, Microsoft, Amazon Web Services, OpenAI and Anthropic. Users are responsible for managing these accounts.
  2. Outside services are governed by their providers' terms. The Company is not responsible for their provision, changes, suspension or fees.

Article 4 (Licence and Fees)

  1. The Services are licensed per person for one year at a time. Fees are set separately by the Company and shown on this website.
  2. Users pay fees in advance by the method the Company specifies. Fees already paid are not refunded if a User stops using the Services or reduces the number of licences during the licence period.
  3. If the licence is not renewed when it ends, Users may keep using the app as it is at that time. Renewing the licence is needed to receive new features and fixes (updates).
  4. If a User is late in paying fees, the User shall pay late charges at 14.6% per year.

Article 5 (AI Output)

  1. Answers, drafts and other output of the Services are produced by the AI model the User chooses, and may not be accurate, complete or up to date.
  2. Users shall check output themselves before using it. Except in cases of the Company's intent or gross negligence, the Company is not responsible for the results of using output.

Article 6 (Prohibited Conduct)

When using the Services, Users must not:

  1. break the law or public order and morals;
  2. engage in conduct related to crime;
  3. damage or interfere with the servers or networks of the Company, other Users or third parties;
  4. engage in conduct likely to disrupt the running of the Services;
  5. gain or attempt to gain unauthorised access;
  6. impersonate others;
  7. provide benefits, directly or indirectly, to anti-social forces;
  8. infringe the intellectual property, portrait, privacy, reputation or other rights or interests of the Company, other Users or third parties;
  9. copy, redistribute or lend the app, or modify, decompile, disassemble or otherwise analyse it, without the Company's permission (except as allowed by law); or
  10. engage in any other conduct the Company considers inappropriate.

Article 7 (Suspension of the Services)

  1. The Company may suspend or interrupt all or part of the Services without prior notice if it judges that:
    • the computer systems for the Services need maintenance or updating;
    • providing the Services has become difficult because of force majeure such as earthquakes, lightning, fire, power cuts or natural disasters;
    • computers or communication lines have stopped because of an accident; or
    • providing the Services is otherwise difficult.
  2. Except in cases of the Company's intent or gross negligence, the Company is not responsible for any disadvantage or damage to Users or third parties caused by suspending or interrupting the Services.

Article 8 (Data and Rights)

  1. Rights in the notes, files, chats and other data Users create and keep with the Services belong to the Users or their rightful owners. The Company does not obtain this data and does not use it for promotion or any other purpose. Anything a User sends to the Company as feedback is handled under the Privacy Policy.
  2. Users may use with the Services only information they hold the rights to or have permission to use.
  3. Copyright and other intellectual property rights in the Services and the app belong to the Company or to the rights holders who license them to the Company.

Article 9 (Restriction of Use and Termination)

  1. The Company may restrict all or part of a User's use of the Services, or terminate the contract, without prior notice if the User:
    • breaches any provision of the Terms;
    • is found to have given false information when applying;
    • fails to pay fees or other amounts due;
    • does not respond to the Company's contact for a certain period; or
    • is otherwise judged by the Company to be unsuitable to use the Services.
  2. In any of these cases, the User loses the benefit of time for all debts owed to the Company and must pay them in full immediately.
  3. Except in cases of the Company's intent or gross negligence, the Company is not responsible for damage to Users caused by actions it takes under this Article.

Article 10 (Disclaimer of Warranties and Limitation of Liability)

  1. The Company makes no warranty, express or implied, that the Services are free of defects in fact or law (including defects in safety, reliability, accuracy, completeness, effectiveness, fitness for a particular purpose or security, errors, bugs and infringement of rights).
  2. Except in cases of the Company's intent or gross negligence, the Company is not responsible for any damage to Users arising from the Services. However, this does not apply where the contract between the Company and the User is a consumer contract under the Consumer Contract Act.
  3. Even in the case described in the proviso above, the Company is not responsible for damage arising from special circumstances caused by its negligence (other than gross negligence) in breach of contract or tort. Compensation for damage caused by the Company's negligence (other than gross negligence) is limited to the fees received from the User for the licence period in which the damage occurred.
  4. The Company is not responsible for transactions, communications or disputes between a User and other Users or third parties.

Article 11 (Changes to the Services)

The Company may change, add to or end the Services after giving Users notice in advance, and Users agree to this.

Article 12 (Changes to the Terms)

  1. The Company may change the Terms without Users' individual consent when:
    • the change is in the general interest of Users; or
    • the change does not go against the purpose of the contract and is reasonable in light of the need for it, the appropriateness of the new terms and other circumstances.
  2. Before such a change, the Company will notify Users that the Terms will change, of the new content and of when it takes effect.

Article 13 (Personal Information)

The Company handles personal information obtained through the Services appropriately under its Privacy Policy.

Article 14 (Notices and Contact)

Notices and contact between Users and the Company are made in the way the Company specifies. Unless a User reports a change in the way the Company specifies, the Company treats the contact details on record as valid, and notices sent to them are deemed to reach the User when sent.

Article 15 (No Assignment)

Users may not assign their position under the contract, or their rights or obligations under the Terms, to a third party or use them as security without the Company's prior written consent.

Article 16 (Governing Law and Jurisdiction)

  1. The Terms are governed by the laws of Japan.
  2. The court with jurisdiction over the location of the Company's head office has exclusive jurisdiction over any dispute concerning the Services.

Last updated: November 7, 2026

The Japanese version of these Terms prevails.