Terms of Service
Article 1 (Scope of Application)
These Terms apply to all acts related to a user's use of the Service. Any guidelines, additional rules, or policies that we publish on the Service form part of these Terms. If any individual rules conflict with these Terms, the special provisions separately designated by us shall take precedence.
Article 2 (Description of the Service)
The Service is a web application that connects to external services such as Google Calendar and Outlook Calendar to visualize and analyze schedules. We may change, add, or suspend functions to maintain or improve quality or security. If a material change affects users' rights or obligations, we will provide advance or prompt notice within a reasonable period.
Article 3 (Registration and Login)
Using the Service requires logging in via OAuth authentication with a Google or Microsoft account or another method we designate. Users must ensure that their registration information is truthful and accurate and promptly update it when changes occur. Minors must obtain consent from a parent or legal guardian before using the Service. If we determine that a user has registered or logged in through improper means, we may suspend use or delete the account without prior notice.
Article 4 (Paid Plans and Fees)
The Service offers paid plans billed through Stripe's payment system. Details of the fees, billing units, renewal cycle, features, payment methods, and cancellation procedures are set out on the plan page and in the Specified Commercial Transactions Act notice. Paid plans renew automatically unless the user completes the cancellation process on the account settings page or via a prescribed contact method before the next renewal date. Except where required by law, fees already paid are non-refundable if the user cancels during the billing period. Stripe's terms of service and privacy policy govern payment processing. We issue receipts or payment confirmations electronically upon request.
Article 5 (Prohibited Acts)
- Acts that violate laws or public order and morals
- Acts that infringe the intellectual property, privacy, or other rights or interests of us or third parties
- Unauthorized access, tampering, reverse engineering, crawling, scraping, or other acts that disrupt the Service's normal operation
- Acts that place excessive load on our servers or probe infrastructure vulnerabilities
- Impersonating others or allowing third parties to use your account
- Providing benefits to or otherwise engaging with antisocial forces
- Reproducing, reposting, redistributing, or reselling information obtained through the Service without our permission
- Other acts that we deem inappropriate
Article 6 (Data Handling)
With user consent, we obtain data by connecting to external calendar services and use it to provide analytics, visualization, and service improvements. Our Privacy Policy governs the handling of personal information. We implement appropriate safeguards in accordance with applicable laws and only disclose data to third parties when the user consents, when required by law, or when outsourcing under proper supervision. If a user cancels or stops using the Service, we delete or anonymize the related data after a reasonable period. Users may request disclosure, correction, or suspension of use of retained personal data in accordance with the procedures set out in the Privacy Policy.
Article 7 (Intellectual Property Rights)
All intellectual property rights, including copyrights, trademarks, logos, designs, and programs related to the Service, belong to us or legitimate right holders. Users grant us a non-exclusive, royalty-free license to use any data they input or submit to the extent necessary to provide and improve the Service. Users may not reproduce, repost, or redistribute information contained in the Service without our explicit permission.
Article 8 (Disclaimer and Limitation of Liability)
We do not warrant continuous, uninterrupted operation of the Service or guarantee fitness for a particular purpose, completeness, accuracy, or timeliness. We are not liable if the Service becomes unavailable in whole or in part due to changes in external APIs (including Google and Microsoft), outages, authentication errors, or similar reasons. The foregoing does not apply where our willful misconduct or gross negligence causes damage or where applicable laws, including the Consumer Contract Act, prohibit such disclaimers. Where we are liable for a paid plan, our liability is limited to direct and ordinary damages up to the total fees the user paid to us in the previous three months.
Article 9 (Changes, Suspension, and Termination)
We may change, suspend, or terminate the Service, in whole or in part, when necessary for system maintenance, security measures, cessation of external services, legal compliance, force majeure events, or other unavoidable operational reasons. Except in emergencies, we will strive to provide prior notice on the Service. If paid users are materially affected, we will discuss refunds or alternative measures in light of their usage.
Article 10 (Amendments)
We may amend these Terms pursuant to Article 548-4 of the Civil Code if the amendment benefits users generally or is reasonable in light of the purpose of these Terms. We will announce the amended Terms and effective date on the Service at least two weeks before they take effect. If a user continues to use the Service after the effective date or does not cancel before that date, the user is deemed to have agreed to the amended Terms. Users who do not agree may terminate their account or paid plan before the effective date.
Article 11 (Governing Law and Jurisdiction)
These Terms are governed by the laws of Japan. If a dispute arises between us and a user regarding the Service, the user must first contact our designated support desk so that both parties can confer in good faith. If the dispute remains unresolved, the court having jurisdiction over our head office shall be the exclusive court of first instance. However, if the user qualifies as a "consumer" under the Consumer Contract Act, the court with jurisdiction over the user's place of residence shall also have jurisdiction.
Supplementary Provisions
These Terms take effect on October 21, 2025. For contact details and company information, please refer to our Specified Commercial Transactions Act notice.