Last updated: July 22, 2026
These Terms of Service ("Terms") govern your use of the KirokuKit website and services (collectively, "Service"). By accessing or using the Service, you agree to be bound by these Terms. If you do not agree, please do not use the Service.
1. Description of Service
KirokuKit provides the following free web-based tools:
- Free Trial End Date Calculator: calculates the end date of a free trial, a recommended cancel-by date, and an estimate of renewal costs, and lets you download a calendar reminder file (ICS format).
- Electronic Bookkeeping Act Filename Maker: generates filenames that follow the search requirements of Japan's Electronic Bookkeeping Act from the transaction date, counterparty, and amount you enter (available in Japanese only).
The Service is provided "as is". In addition to individual users, companies and sole proprietors may use the Service for business purposes.
2. Calendar Reminders
The Service allows you to download calendar event files (.ics) that you can import into calendar applications such as Google Calendar, Apple Calendar, or Microsoft Outlook. Notifications and reminders are handled entirely by your calendar application — KirokuKit does not send push notifications, emails, or any other direct alerts.
3. Accounts
All free tools on the Service can be used without creating an account. There is no feature that requires an account.
We are not currently accepting new account registrations. If you already have an account, you may sign in with your email address and password or with your Google account. You are responsible for maintaining the confidentiality of your account credentials.
We do not provide any feature that saves or records your calculation or generation results to an account. If you need to keep a result, please retain what is shown on screen or the file you downloaded.
4. Reviewing Calculation and Generation Results
The date and cost calculations and the generated filenames provided by the Service are for informational purposes only. KirokuKit does not guarantee that these results are accurate or complete, or that they are suitable for your particular purpose.
Subscription terms vary by provider, so always verify trial and renewal dates directly with the service you are subscribing to. Likewise, the treatment required under Japan's Electronic Bookkeeping Act and other laws or tax rules depends on how your business actually operates. Whether a generated filename satisfies those requirements must ultimately be confirmed by you or by your tax advisor.
5. Sales Through an External Store
KirokuKit does not sell products or process payments on this website. Paid products are sold only through the KirokuKit shop on BOOTH, an external store operated by pixiv Inc.
- The price, product contents, and payment methods that apply are those shown on the BOOTH product page.
- Payment and delivery of the product (download) are handled through BOOTH's systems. KirokuKit does not receive your payment information.
- The sales contract is formed between you and the seller on BOOTH. BOOTH's terms of service and privacy policy apply to your use of BOOTH.
- The seller disclosure required under Japan's Specified Commercial Transactions Act is published on the BOOTH shop page.
6. Returns and Handling of Defects
Because the products are downloadable, returns and cancellations after purchase cannot generally be accepted. Whether a cancellation or refund is possible is determined by BOOTH.
If the product data is defective — for example the file is corrupted, the contents differ substantially from what was described, or a required file is missing — please contact us through the contact page or at support@kirokukit.com. After reviewing the issue we will provide a corrected version, redistribute the file, supply any missing data, or take other action as needed. If the matter must be handled by BOOTH, we will direct you to BOOTH's support desk.
Nothing in this section limits the rights granted to you, or the responsibilities imposed on us, by applicable law.
7. Prohibited Conduct
You agree not to:
- Use the Service for any unlawful purpose
- Attempt to gain unauthorized access to any part of the Service
- Use automated tools to scrape or abuse the Service
- Interfere with the operation of the Service
8. Intellectual Property
All content, design, and code of the Service are the property of the operator. You may not reproduce, distribute, or create derivative works without prior written permission. The information you enter into the Service, and the calculation results and filenames the Service generates, may be used freely by you, including for business purposes.
9. Limitation of Liability
Except in cases of our intentional misconduct or gross negligence, our liability in connection with the provision of the Service is limited to damages that would ordinarily arise, and we are not liable for damages arising from special circumstances. The limitation in this section applies only to acts constituting negligence other than gross negligence on the part of us, our representatives, or the persons we engage.
This section does not apply where applicable law does not permit our liability to be excluded or limited.
10. Warranties
The Service is provided "as is". We do not warrant that the Service will be uninterrupted or error-free, or that calculation or generation results will be suitable for your particular purpose. This does not apply to warranties and liabilities that cannot be excluded under applicable law.
11. Changes to These Terms
We may update these Terms at any time. Continued use of the Service after changes are posted constitutes your acceptance of the new Terms. The "Last updated" date at the top of this page reflects the most recent revision.
12. Governing Law and Jurisdiction
These Terms are governed by the laws of Japan. Any dispute relating to the Service shall be resolved before the court having jurisdiction in accordance with applicable law.
13. Contact
For questions about these Terms, please write to support@kirokukit.com or use the Contact page.