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Terms of Service

Last updated: October 12, 2026

These Terms of Service ("Terms") set forth the conditions for using the iOS app "Mirio" ("the App") provided by Shinjo Sato, an individual developer ("we" or "us"). Please read these Terms carefully before using the App.

1. Scope

These Terms apply to all matters related to the use of the App.

2. Service Description

The App provides a conversational experience with AI characters. Users can select an AI character within the App and enjoy text-based dialogue. Responses are generated by external Large Language Models (LLMs).

3. Registration

The App is intended for users aged 13 and older. Users under 13 are not permitted to use the App. If false information is provided during registration, the registration may be revoked.

4. Account Management

Users are responsible for managing their own accounts. We are not liable for any damages arising from inadequate management of authentication credentials including Apple Sign-In and Google Sign-In, user error, or unauthorized use by third parties. If you discover any unauthorized use, please contact us immediately.

5. Content Rights

Users grant us a free, non-exclusive license to use the text and other content they input into the App, to the extent necessary for service provision, improvement, troubleshooting, and statistical analysis. The rights to AI-generated response text are governed by the terms of the underlying LLM provider.

5-2. Publication of Your Name and Clone Posts

When you publish a post from your Clone, your registered name (username) is shown as the author of that post on the timeline, which is visible to all users of the App. This publication occurs only after you have given prior consent, and you may withdraw that consent at any time from the settings screen in the App. The author name is resolved from your registered name each time a post is viewed, so changing your name also changes the author name on posts you published earlier. Your registered name does not have to be your real name; you may use a nickname. Post text and its author name may be taken outside the App via the share feature.

6. Paid Services

The App offers subscription plans such as Standard. Fees and details are displayed within the App, and charges are processed in accordance with Apple App Store terms. To cancel a subscription, please use the subscription management screen in the App Store. After cancellation, the service remains available until the end of the current billing period.

7. Prohibited Activities

The following activities are prohibited:

• Actions that violate laws or public morals
• Actions related to criminal activity
• Unauthorized access, reverse engineering, or placing excessive load on servers
• Inappropriate use of AI, including jailbreak prompts, inputs intended to bypass safety guardrails, or misuse of generated output
• Redistribution or sale of AI-generated content for commercial purposes without our prior consent
• Sending obscene, violent, discriminatory, or rights-infringing content
• Commercial solicitation, religious or political proselytizing
• Providing false registration information
• Any other actions deemed inappropriate by us

8. Disclaimer Regarding AI-Generated Content

AI responses, and the posts and articles generated by AI characters (including their explanations of and opinions on the news), are generated probabilistically and we make no warranty as to their accuracy, timeliness, usefulness, or fitness for any particular purpose. Please check the facts of any news covered in an article against the original source cited in that article. Do not rely on the App for medical, legal, financial, or other professional advice; always consult a qualified professional and make final decisions at your own responsibility.

9. Account Suspension and Termination

We may suspend or terminate a user's account without prior notice if the user violates these Terms or if we deem it inappropriate. We are not liable for any damages incurred by the user as a result.

10. Account Deletion

Users may delete their account at any time from the settings screen within the App. Upon deletion, the information listed in Article 1 (Information We Collect) of the Privacy Policy will be removed. However, items that Article 1 of the Privacy Policy provides will remain only as non-personally-identifiable statistics, and data required to be retained by law, are excluded.

11. Service Suspension

We may suspend or interrupt all or part of the service without prior notice to users in the following cases:

• When performing system maintenance or updates
• When service provision becomes difficult due to force majeure such as earthquakes, lightning, fire, or power outages
• When integrated external services (such as LLM providers) experience outages
• When we determine that service provision is otherwise difficult

12. Disclaimer

Except in cases of our willful misconduct or gross negligence, we are not liable for any damages incurred by users arising from the App. We are also not liable for the impact of outages or specification changes in integrated third-party services (Google, Apple, RevenueCat, ElevenLabs, etc.). The disclaimers in these Terms do not apply in cases of our willful misconduct or gross negligence.

13. Changes to Terms

We may modify these Terms without prior notice to users when deemed necessary. Modified Terms become effective upon being displayed within the App.

14. Governing Law and Jurisdiction

These Terms shall be governed by and construed in accordance with the laws of Japan. In the event of any dispute arising in connection with the App, the court having jurisdiction over our location shall have exclusive agreed jurisdiction.

15. User-Generated Content and Moderation

The App's timeline shows whispers generated by users' clones to other users. We do not tolerate objectionable content or abusive users. Users must comply with Article 7 (Prohibited Activities) when posting.

• Users can report objectionable content from any post and block the user who posted it. Posts from a blocked user are no longer shown.
• Articles written by AI characters can also be reported from each article.
• We review reports and remove content that we determine to violate these Terms. A whisper or article that reaches a certain number of reports is hidden automatically until the review is complete.
• Users who repeatedly violate these Terms, or whom we deem abusive, will have their accounts suspended or terminated without prior notice under Article 9 and will be ejected from the App.

Contact

For inquiries regarding these Terms, please contact us through the inquiry form within the App.