Terms of Service

Article 1 (Application)

The purpose of these Terms is to set forth the conditions for provision of the Service and the rights and obligations between us and the User, and these Terms apply to all relationships between the User and us concerning the use of the Service. By using the Service, the User is deemed to have agreed to these Terms and to the Privacy Policy.

Article 2 (Use and Anonymous Authentication)

1. The Service may be used without prior account registration, by means of Firebase anonymous authentication. Users may optionally set a nickname (display name) and an avatar.
2. Users shall use the Service in compliance with applicable laws and regulations and with these Terms.
3. Minors shall use the Service only after obtaining the consent of a person with parental authority or another statutory representative. The same applies to purchases and other acts for which the consent of a statutory representative is required by reason of age.

Article 3 (Management of Accounts and Devices)

1. Users shall manage their own devices and authentication information at their own responsibility.
2. Posting history, drafts, purchase status, and similar data may not be transferable due to loss of a device, deletion of the app, change of device model, or other circumstances.
3. We shall not be liable for any damages arising from a User's inadequate management or from use by a third party, except in cases of our willful misconduct or gross negligence.

Article 4 (User Content)

1. Copyright and other rights in illustrations, titles, comments, message board (Talk) posts, and other information posted or registered to the Service by a User (the "User Content") belong to the User or to the rightful rights holder.
2. The User grants us a royalty-free, non-exclusive license to use the User Content (including reproduction, public transmission, display, format conversion, cropping, and the like) to the extent necessary for the provision, display, distribution, improvement, promotion, backup, and moderation of the Service. This license continues for the period necessary for such purposes.
3. The User warrants that the User Content does not infringe the rights of any third party.

Article 5 (Publication and Sharing of Posts)

Posted artwork, titles, comments, message board posts, and the like are made public and displayed to other Users in accordance with the specifications of the Service. Users shall post only with the understanding that User Content may be viewed, saved, and shared by other Users. Users must not post information that identifies another person, or the personal information of a third party, without that third party's consent.

Article 6 (Fees and Payment)

1. The Service includes features available free of charge and features provided under paid plans. The fees displayed within the app shall apply.
2. Purchases and renewals of paid plans are made through the App Store or Google Play, and the terms of the respective platform apply.
3. Subscriptions renew automatically unless cancellation is carried out. Cancellation can be performed from the settings screen of each platform.
4. Except as otherwise required by law, we do not refund fees already paid.
5. Communication charges and other costs necessary to use the Service shall be borne by the User.

Article 7 (Prohibited Acts)

In using the Service, Users must not engage in any of the following acts.

1. Acts that violate laws and regulations or public order and morals
2. Acts related to criminal activity
3. Acts that infringe the copyrights, trademark rights, portrait rights, privacy, reputation, or other rights or interests of us or of any third party
4. Posting content that is discriminatory, threatening, harassing, obscene, excessively violent, that encourages self-harm, or that otherwise causes discomfort or harm to others
5. Content that leads to the exploitation of children, or the inappropriate posting of information that identifies another person or of confidential information
6. Impersonation, fraud, advertising or solicitation, spam, or mass posting of identical content
7. Unauthorized access, reverse engineering, decompilation, modification, probing for vulnerabilities, or acts that destroy or interfere with the servers or network functions of the Service
8. Accessing the Service by automated means such as bots or scraping
9. Using the Service for commercial purposes without our permission
10. Any other act that we reasonably determine to be inappropriate

Article 8 (Reporting, Blocking, Removal, and Similar Measures)

1. Users may report User Content they consider inappropriate by the method prescribed by the Service, and may also block other Users.
2. Whether or not a report has been made, if we reasonably determine that User Content violates these Terms or impedes the safe operation of the Service, we may restrict its display, delete it, exclude it from search results, or take other necessary measures without prior notice.
3. We are under no obligation to disclose the reasons for our determinations regarding individual reports or the details of the resulting actions.

Article 9 (Suspension of Provision of the Service)

We may suspend or interrupt the provision of all or part of the Service without prior notice to Users if we determine that any of the following circumstances applies.

1. When maintenance, inspection, or updating of the Service is performed
2. When provision of the Service becomes difficult due to force majeure such as earthquake, lightning, fire, power outage, failure of communication lines, or natural disaster
3. When we otherwise determine that provision of the Service is difficult

Article 10 (Restrictions on Use)

If a User violates any provision of these Terms, if there is a high likelihood of such a violation, or if it is necessary for the safe operation of the Service, we may delete posts, restrict functionality, or take other measures without prior notice.

Article 11 (Withdrawal and Account Deletion)

Users may withdraw from the Service at any time via "Settings → Delete account" within the app. After withdrawal, User Content and information related to the account will be deleted within a reasonable period and cannot be restored. However, such information may remain for a certain period for purposes of backup, legal compliance, or dispute resolution.

Article 12 (Disclaimer of Warranties and Limitation of Liability)

1. We do not warrant that the Service is suitable for any particular purpose of the User, that it has the functionality, accuracy, or usefulness the User expects, that it will remain continuously available, that no defects will occur, or that User Content is accurate or lawful.
2. Except in cases of our willful misconduct or gross negligence, we shall not be liable for any damages incurred by Users in connection with the Service. Where such exemption is not permitted under the Consumer Contract Act or other laws and regulations, this paragraph shall apply only to the extent permitted by such laws and regulations.
3. Where we bear liability for damages, the scope of that liability shall be limited to ordinary and direct damages, and, with respect to paid plans, shall be capped at the total amount of usage fees paid by the User to us during the preceding twelve (12) months. This does not apply in cases of our willful misconduct or gross negligence.

Article 13 (Changes to the Service)

We may change the content of the Service or discontinue its provision without notice to Users where necessary due to maintenance, failures, disasters, suspension of external services, or other reasons, and we shall bear no liability whatsoever for any damages incurred by Users as a result. We will give advance notice to the extent practicable, except in cases of emergency.

Article 14 (Changes to These Terms)

We may amend these Terms in accordance with applicable law where reasonable in light of the necessity of the amendment, the appropriateness of its content, and other circumstances. Material changes will be announced by display within the app, on this website, or by other appropriate means prior to the effective date.

Article 15 (Handling of Personal Information)

Personal information acquired through use of the Service will be handled appropriately in accordance with our separately established Privacy Policy.

Article 16 (Governing Law and Jurisdiction)

1. These Terms shall be interpreted in accordance with the laws of Japan as the governing law.
2. In the event of a dispute concerning the Service, the court having jurisdiction over the location of our head office shall be the exclusive agreed court of first instance.

Contact

For inquiries regarding these Terms, please contact us below.

Keel Lab
Contact: support@keel-lab.com

Effective Date

Established and effective as of July 16, 2026