Last Updated: March 28, 2026
These Terms of Service (“Terms”) govern your use of the applications and related services (collectively, the “Service”) provided by ottava (“we”, “us”, or “our”). By using the Service, you agree to these Terms.
1. Service Description #
The Service provides various applications designed to support operational efficiency. For specific features of each application, please refer to the App Store description and in-app guidance.
2. Accounts #
- An Apple Sign In account is required to use the Service.
- Users are responsible for providing accurate information.
- Users are responsible for managing their accounts and must promptly notify us of any unauthorized use.
- We may suspend or delete accounts that violate these Terms without prior notice.
3. Account Deletion #
- Users can delete their account at any time through the in-app account deletion feature.
- Upon account deletion, Apple Sign In authentication tokens will be revoked by us.
- For data handling after account deletion, please refer to our Privacy Policy.
4. Fees #
- Basic features of the Service are provided free of charge.
- If paid features are introduced, pricing will be clearly communicated in advance.
- In-app purchases through the App Store are subject to Apple’s terms and conditions.
5. AI Features #
- The Service may use AI technology to provide various features. Chat messages are sent to Anthropic, PBC’s AI service.
- AI outputs are provided as reference information and are not guaranteed to be accurate.
- Users should verify AI suggestions and make important decisions based on their own judgment.
- Except in cases of our willful misconduct or gross negligence, we are not responsible for decisions made by users based on AI outputs.
6. Prohibited Activities #
Users must not:
- Violate any laws or public order
- Infringe on the rights of other users or third parties
- Place excessive load on the Service’s servers or network
- Interfere with the operation of the Service
- Attempt unauthorized access to the Service’s systems
- Decompile, reverse engineer, or disassemble the Service
- Copy, modify, or distribute any part of the Service
- Engage in any other activity deemed inappropriate by us
7. Intellectual Property #
All intellectual property rights related to the Service belong to us or their rightful owners. The license granted under these Terms does not constitute a transfer of these rights.
8. Disclaimer and Liability #
- We do not guarantee the completeness, accuracy, reliability, or usefulness of the Service.
- In cases where damages arise due to our willful misconduct or gross negligence, we shall compensate for such damages.
- In cases where damages arise due to our ordinary negligence, our liability shall be limited to the amount the user has actually paid for the Service in the 12 months preceding the date of the damage. This limitation applies only to cases of ordinary negligence.
- Except in cases of our willful misconduct or gross negligence, we are not responsible for service interruptions or delays caused by communication or computer failures.
- We are not liable for inability to provide the Service due to force majeure events, including natural disasters, war, terrorism, riots, regulatory changes, or government actions.
9. Service Modifications and Termination #
- We may modify or temporarily or permanently discontinue the Service in the following cases:
- System maintenance or inspection
- Force majeure events such as natural disasters, power outages, or communication failures
- Other circumstances we deem unavoidable
- If we permanently discontinue the Service, we will provide advance notice through in-app notifications or email within a reasonable period. This does not apply in cases of emergency.
- Except in cases of our willful misconduct or gross negligence, we are not liable for any damages resulting from Service modifications or termination.
10. Changes to These Terms #
- We may modify these Terms only when such modification does not conflict with the purpose of the Service and is reasonable in light of the necessity of the change and the appropriateness of the modified content.
- When modifying these Terms, we will notify you of the changes and the effective date at least 14 days before the effective date through in-app notifications or email.
- The modified Terms become effective on the notified effective date. Continued use of the Service after the effective date constitutes acceptance of the modified Terms.
11. Governing Law and Jurisdiction #
- These Terms shall be governed by the laws of Japan.
- Any disputes related to the Service shall be subject to the jurisdiction of the Tokyo District Court as the court of first instance.
12. Contact Us #
If you have questions about these Terms, please contact us at:
- Email: [email protected]