Terms of Service
Effective: 1 January 2025 · Last updated: 26 August 2026
This is a reference translation. The Japanese version is the legally binding text; if the two differ, the Japanese version prevails.
These Terms of Service (the “Terms”) set out the conditions for using “CDE (Common Data Environment)” (the “Service”) provided by Kazuya Maeda (the “Operator”). Please read them before using the Service. By using the Service you are deemed to have agreed to these Terms.
Article 1 (Definitions)
- “User” means any individual or corporation registered with the Service.
- “Content” means design data such as IFC files, PDFs and images that a User uploads to the Service.
- “CDE” means the folder management, file storage and sharing features (Common Data Environment) provided by the Service.
- “Free plan” means the basic plan available at ¥0 per month.
- “Paid plan” means the premium plan available at ¥1,000 per month (incl. tax).
Article 2 (Overview of the Service)
The Service is a web application for managing, visualising and analysing architectural, structural and MEP design data (such as IFC files) in a browser. A free plan and a paid plan are offered.
Available on the free plan (¥0):
- 1GB of storage
- IFC 3D viewer (3D display, section cuts, storey filters, element properties)
- IFC schema checks (with CSV export)
- Issue tracking
- Cloud save and load
Additionally available on the paid plan (¥1,000/month, incl. tax):
- 60GB of storage (+30GB for ¥300)
- Adding organization members and project members
- IFC / project overlay
- Point-cloud overlay
- Quantity take-off (concrete volume, steel counts, finish areas and door/window counts, by storey)
- Clash detection
Article 3 (Account registration)
- Users may register with a Google account or with an email address and password.
- Users are responsible for keeping their registration information accurate and up to date.
- Users manage their own accounts at their own risk. The Operator is not liable for unauthorised use by third parties.
- Creating multiple accounts for improper purposes is prohibited.
Article 4 (Fees and payment)
- The paid plan costs ¥1,000 per month (incl. tax). The first payment is taken on subscription and renews automatically on the same day each month.
- The additional storage option is ¥300 (incl. tax) per 30GB.
- Payment is by credit card through Stripe.
- Fees may change. Users will be notified by email or similar at least 30 days in advance.
Article 5 (Cancellation and refunds)
- The paid plan can be cancelled at any time from the account screen.
- After cancellation, paid features remain available until the end of the current period (the next renewal date). No charges occur after that date.
- Given the nature of a digital service, amounts already paid are in principle non-refundable. If the cause is a service failure on the Operator’s side, please get in touch and it will be handled individually.
- Cancelling the paid plan moves the account to the free plan and the storage limit changes to 1GB. If usage exceeds 1GB, new uploads are blocked, but existing files are retained.
Article 6 (Prohibited conduct)
Users must not:
- Violate laws or these Terms
- Interfere with the operation of the Service (for example by excessive load)
- Infringe the rights of other Users or third parties
- Register or use an account for improper purposes
- Reverse-engineer, alter or redistribute the Service
- Abuse the sharing features for unauthorised access or data theft
- Do anything else the Operator judges to be inappropriate
Article 7 (Intellectual property)
- All intellectual property rights relating to the Service belong to the Operator.
- Rights to Content uploaded by a User belong to that User. The Operator processes it solely for the purpose of providing the Service.
- Uploaded files are stored in the cloud (Firebase Storage).
Article 8 (Disclaimer)
- Check results and quantity take-off produced by the Service come from automated analysis and cannot be used as official documents such as building permit applications. Final design decisions are the User’s own responsibility.
- The Operator makes no warranty, express or implied, as to the accuracy, completeness or usefulness of the Service.
- Except in cases of the Operator’s wilful misconduct or gross negligence, the Operator is not liable for damages arising from use of the Service.
- The Operator may suspend the Service without notice for maintenance or in the event of a failure.
Article 9 (Handling of personal information)
Please see the Privacy Policy for how personal information is handled.
Article 10 (Changes to these Terms)
The Operator may change these Terms where it judges this necessary. Amended Terms take effect when published on this page. Significant changes will be notified to the registered email address.
Article 11 (Termination of the Service)
The Operator may terminate the Service with 30 days’ prior notice. Users on a paid plan will be refunded in proportion to the remaining period.
Article 12 (Governing law and jurisdiction)
These Terms are interpreted under the laws of Japan. The Tokyo District Court shall be the exclusive court of first instance for disputes relating to the Service.
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