Last updated: October 27, 2026

These Terms and Conditions (the "Terms") set out the conditions for using Kuukan Cloud (https://kuukan-cloud.com, the "Service"), a web service provided by the operator of this website ("we", "us" or "our"). Please read them before using the Service.

Article 1. Application and Definitions

  1. These Terms apply to all use of the Service. By creating an account, uploading data or otherwise using the Service, you agree to these Terms. If you do not agree, please do not use the Service.
  2. In these Terms:
    1. "Your Content" means the photos, videos and 3D files you upload to the Service.
    2. "Dataset" means a set of photos or a video you upload on Workspace, together with the data created from it.
    3. "Run" means processing of a Dataset on our servers. A "Full Run" (Workspace) performs all steps, and a "Step Run" (Manual Pipeline) performs one step.
    4. "Results" means data created by the Service, such as Camera Pose, Point Cloud, Mesh, Textured Mesh and Gaussian Splat files, and converted files.
    5. "3D Conversion" means converting Results, or 3D files you upload on the Converter page, into other file formats.
    6. "Registered Card" means a credit card you have registered through Stripe for payments on the Service.
    7. "Guest" means a person who uses the Service without an account.

Article 2. The Service

  1. The Service creates 3D data from photos and videos you upload, using photogrammetry and Gaussian splatting. It consists of:
    1. Workspace: uploading photos or a video as a Dataset and creating all Results with one Full Run;
    2. Manual Pipeline: running each step of a Dataset as a Step Run with detailed options, running steps again, and duplicating a Dataset to resume from a step;
    3. Converter and the Convert buttons: 3D Conversion;
    4. 3D Viewer: viewing 3D files in your browser (files you open from your own device are not uploaded); and
    5. Profile: managing your account, your card, email notifications, and checking your charges and billing history.
  2. The Service has limits, such as the accepted file types, the size of a Dataset, the number of photos, the length of a video, the number of Runs in progress at the same time and the processing time. The limits are shown in the Service and may change. A Run that does not finish within the processing time limit is stopped.
  3. Prices, limits and other conditions shown in the Service, including in dialogs and tooltips, form part of these Terms.
  4. Workspace also offers sample Datasets that we provide. Running a sample (a "Sample Run") does not process data on our servers: after a short progress display, it gives you Results that we created in advance from that sample with the Service. A Sample Run is free of charge and is not a Run under these Terms. Sample Datasets are not counted as your stored data, cannot be converted, duplicated or used in Manual Pipeline, and may be changed or removed at any time.

Article 3. Guests and Accounts

  1. Without an account, you can upload photos and videos, add sample Datasets, see prices and use free 3D Conversions on the Converter page. When you first upload or add a sample, the Service creates a temporary account for you as a Guest, linked to your browser. To start a Run or a paid 3D Conversion, you need an account and a Registered Card. A Sample Run (Article 2, paragraph 4) needs an account but not a Registered Card.
  2. You can create an account with an email address and a password, or with a Google account. If you create an account in the browser you used as a Guest, you can choose to keep the data you uploaded as a Guest.
  3. You must register accurate information and keep your email address up to date. You may not let other people use your account.
  4. You are responsible for keeping your password secure and for all use of your account. After repeated failed sign-in attempts, signing in is temporarily locked.
  5. If you are a minor, you may use the Service only with the consent of your parent or legal guardian. If you use the Service on behalf of a company or other organization, you represent that you are authorized to agree to these Terms on its behalf.

Article 4. Fees

  1. All prices are in U.S. dollars. The price shown is the total amount you pay; no tax is added to it.
  2. The price of each Run and each paid 3D Conversion is calculated from your data and the selected options, and is shown in the confirmation dialog before you start it. A price is valid for 24 hours; after that, or if the data or options change, the price is calculated again and shown to you before the start. Price charts in the Service show prices for typical inputs, for reference.
  3. A Full Run is charged as follows. The charge never exceeds the price shown when the Run was started.
    1. When the Run completes: the price shown.
    2. When the Run stops before it completes, for any reason: the price of each step already finished, plus the "Cancellation fee cap" of the step in progress multiplied by the progress of that step (the percentage shown in the Service for the step) when it stopped. The price of each step is its share of the price of the Run, and the Cancellation fee cap of a step is 40% of the price of that step; both are shown with the price of the Run. Fractions of a cent are rounded down, and an amount of US$0.01 or less in total is not charged. This applies when you cancel the Run, including by deleting the Dataset while the Run is in progress; when camera pose estimation fails because the photos could not be connected to each other and no 3D model could be built; when the Run is stopped after camera pose estimation with a Warning that the next step is likely to fail, or because its result cannot be used for the next step (camera pose estimation is then treated as the step in progress); and when the Run stops because of an error, including when it does not finish within the processing time limit.
    3. When you stop the Run from the cancel dialog, the amount shown in the dialog is charged if you confirm within the 60 seconds it is shown. If you do not confirm, the dialog closes and the Run continues.
  4. A Step Run is charged as follows. The charge never exceeds the price shown when the Step Run was started.
    1. When the Step Run completes: the price shown.
    2. When the Step Run stops before it completes, for any reason: the "Cancellation fee cap" shown with the price multiplied by the progress of the Step Run (the percentage shown in the Service) when it stopped. The Cancellation fee cap is 40% of the price of the Step Run. Fractions of a cent are rounded down, and an amount of US$0.01 or less is not charged. This applies when you cancel the Step Run, including by deleting the Dataset while it is in progress; when camera pose estimation fails because the photos could not be connected to each other and no 3D model could be built; and when the Step Run stops because of an error, including when it does not finish within the processing time limit. A Step Run shown without a Cancellation fee cap is not charged in these cases.
    3. When camera pose estimation finishes with a Warning that the next step is likely to fail: the same amount instead of the price shown, with camera pose estimation treated as the step in progress. The Results are kept.
    4. When you stop the Step Run from the cancel dialog, the amount shown in the dialog is charged if you confirm within the 60 seconds it is shown. If you do not confirm, the dialog closes and the Step Run continues.
  5. Running all steps or a step again is a new Run and is charged as such. Duplicating a Dataset is not charged, but the duplicated data is included in the stored data under paragraph 7.
  6. 3D Conversions are priced by the type and size of the file. Files smaller than the sizes shown in the Service, and Gaussian Splat files, are converted free of charge. A paid 3D Conversion is charged as follows. The charge never exceeds the price shown when the 3D Conversion was started.
    1. When the 3D Conversion completes: the price shown.
    2. When you cancel the 3D Conversion while it is in progress, including by deleting the converted file, the file it was made from or the Dataset: the "Cancellation fee cap" shown with the price multiplied by the progress of the 3D Conversion (the percentage shown in the Service) when you canceled it. The Cancellation fee cap is 40% of the price of the 3D Conversion. Fractions of a cent are rounded down, and an amount of US$0.01 or less is not charged.
    3. When you stop the 3D Conversion from the cancel dialog, the amount shown in the dialog is charged if you confirm within the 60 seconds it is shown. If you do not confirm, the dialog closes and the 3D Conversion continues.
    4. A 3D Conversion that fails is not charged.
  7. Data storage:
    1. The data stored in the Service for your account, including uploaded photos, videos and 3D files, Results, converted files and intermediate data kept for running steps again, is subject to a storage fee. The first 5 GiB (5 × 1024³ bytes) of the total is free. Beyond that, the fee is US$0.025 per GB-month (1 GB = 1,000,000,000 bytes), calculated from the amount stored beyond the free allowance and the length of time it is stored. For example, storing 10 GB beyond the free allowance for a whole month costs US$0.25. A file is not charged for the first 24 hours after it is stored and is not counted toward the total during that time.
    2. The storage fee is charged from the time you register a card. No storage fee is charged for the data of Guests and of users without a Registered Card; that data is deleted as set out in Article 7.
    3. Stored data is charged until it is permanently deleted. A Dataset you delete is permanently deleted shortly after the undo period ends (normally within a few minutes).
  8. There are no fees other than those in this Article, such as fees for accounts, uploads, price estimates, downloads or the 3D Viewer. Internet connection and communication charges are paid by you.
  9. We may change the prices of Runs and 3D Conversions; the price shown when you start each one applies to it. Changes to the storage fee or the free allowance that are unfavorable to you are made in accordance with Article 16.

Article 5. Billing and Payment

  1. Card details are entered on a page provided by Stripe, our payment processor, and are handled by Stripe. We do not receive or store your card number.
  2. Charges are totaled for each calendar month in Coordinated Universal Time (UTC). At the beginning of the following month (on the 1st, UTC), we issue an invoice through Stripe and automatically charge it to your Registered Card. You can check the charges for the current month and your billing history on your Profile page.
  3. If your Registered Card is a JCB, Diners Club or Discover card, charges are billed in Japanese yen, converted from U.S. dollars at the exchange rate when each charge is recorded (amounts of less than one yen are rounded down). Other cards are billed in U.S. dollars. Your card issuer may charge fees for currency conversion or foreign transactions.
  4. If the total of an invoice is below the minimum amount that can be charged (US$0.50 or ¥50), it is not charged at that time and is added to a later invoice.
  5. To change your card, register a new card on your Profile page. Later invoices are charged to the new card.
  6. If a payment fails, we will notify you by email, and the payment may be retried automatically. Please pay the invoice from the link in the email or on your Profile page, or register a valid card.
  7. While an invoice remains unpaid, we may suspend new Runs and paid 3D Conversions. If an invoice remains unpaid 30 days after we notified you of the failed payment, we may suspend your account and, after notifying you by email, delete your stored data. Storage fees continue to accrue while your data is stored.
  8. Charges incurred before you stop using the Service, or before your account is suspended or closed, remain payable.

Article 6. Refunds and Billing Errors

  1. Runs and 3D Conversions are processing performed at your request. Charges made in accordance with these Terms are not refunded, including when you are not satisfied with the Results.
  2. If you believe that a charge is incorrect, please contact us (Article 19). If we confirm an error, we will refund the amount or deduct it from a later invoice.

Article 7. Storage, Retention and Deletion of Data

  1. If you have a Registered Card, your data is kept until you delete it, unless it is deleted under Article 5, Article 10 or this Article.
  2. Data uploaded without a Registered Card is deleted as follows, unless you register a card before then. The time left is shown in the Service.
    1. Data uploaded as a Guest is deleted 48 hours after the first upload. The period is not extended by uploading again or by duplicating. If you keep the data when you create an account, it is still deleted at the same time unless you register a card.
    2. Data uploaded by a user with an account but without a Registered Card is deleted 48 hours after it is uploaded. A duplicate is deleted at the same time as the original.
  3. On the Converter page, converted files are deleted 7 days after the conversion completes, and a source file is deleted when all of its converted files have been deleted. A source file without converted files is deleted 7 days after it is uploaded. Paragraph 2 also applies to these files.
  4. When you delete a Dataset, you can undo the deletion for 30 seconds. After that, the Dataset and its Results, converted files and intermediate data are permanently deleted and cannot be restored. Uploaded data that a Dataset shares with its duplicates is kept while any of them remains. Deleting a source file on the Converter page cannot be undone.
  5. Running all steps of a Dataset again deletes its current Results. Running a step again replaces the Results of that step and deletes the Results of the later steps.
  6. Please download the Results you need and keep your own copies. Except as provided in Article 13, we are not liable for the loss of data.
  7. Even after data is deleted, we may keep the records needed to operate the Service, such as your User Log, records of processing (such as file names, sizes, processing times and errors), logs of failed processing steps, and billing records (invoice descriptions include Dataset and file names).

Article 8. Your Content and Results

  1. You keep all rights you have in Your Content. We do not claim ownership of Your Content.
  2. As between you and us, the Results created from Your Content belong to you, and we claim no rights in them. Subject to paragraph 3, you may use, edit, publish, distribute and sell the Results, including for commercial purposes.
  3. Results reproduce what appears in Your Content. If Your Content, or anything that appears in it (such as artworks, sculptures, buildings, products, designs, characters, logos or people), is protected by copyright, trademark, design rights, portrait rights, publicity rights, privacy or other rights of a third party, those rights may also apply to the Results, and you may need permission from the rights holder to use the Results. These Terms do not give you any rights in such third-party content. Some Results contain images from Your Content; for example, Camera Pose Results include small copies of each photo, and Textured Meshes are made from your photos.
  4. You represent and warrant that:
    1. you own Your Content, or have all the rights, licenses and permissions needed to upload it and have it processed by the Service;
    2. where required, you have the consent of each identifiable person who appears in Your Content (or of their parent or legal guardian); and
    3. uploading Your Content and having it processed does not infringe the rights of any third party or violate any law.
  5. You grant us a non-exclusive, worldwide, royalty-free license to store, copy, transmit, process, convert and display Your Content and Results only as necessary to:
    1. provide the Service to you;
    2. investigate and fix failures and other problems, and answer your inquiries;
    3. prevent fraud and abuse and protect the Service; and
    4. comply with laws.
    Service providers that operate the Service for us, such as Amazon Web Services (AWS), may handle Your Content for these purposes. The license ends when the data is deleted, except for the records kept under Article 7, paragraph 7.
  6. We do not use Your Content or Results for any other purpose. In particular, we do not publish them, sell them, provide them to third parties or use them to train machine learning models, except as required by law. We may use records of processing (such as file sizes, processing times and errors) to operate the Service and to set prices.
  7. You are responsible for Your Content and for your use of the Results. We do not monitor Your Content, but we may restrict access to it or delete it if it violates these Terms or the law, or if a third party reasonably claims that it infringes their rights. If a third party makes a claim against us because of Your Content or your violation of these Terms, you must resolve it at your own responsibility and expense and compensate us for the damages we reasonably incur, including reasonable attorneys' fees, except to the extent that the claim is caused by us.
  8. The Service itself, including its software, design and text (excluding Your Content and Results), belongs to us or our licensors.

Article 9. Prohibited Activities

When using the Service, you must not:

  1. violate laws or regulations, or public order and morals;
  2. upload content without the rights, licenses, permissions or consents needed under Article 8, or infringe the intellectual property, portrait, publicity, privacy, reputation or other rights of others;
  3. upload photos or videos captured unlawfully, such as by secret filming, trespassing or flying a drone in violation of the law;
  4. upload child sexual abuse material, or obscene, discriminatory or otherwise unlawful or harmful content;
  5. upload malware, or files designed to damage, overload or disrupt our systems;
  6. access the Service without authorization, attack or probe our systems, or try to get around security measures, limits or charges;
  7. use another person's account, email address or credit card, or make fraudulent payments;
  8. create several accounts or Guest sessions to avoid limits, charges or the deletion of data;
  9. use the Service mainly as a file storage or file sharing service;
  10. access the Service with bots, scrapers or other automated means beyond normal use;
  11. resell or rent the Service itself, or provide it to third parties as part of another service, without our prior written permission (using the Results, including commercially, is permitted under Article 8);
  12. decompile or reverse engineer the Service, except as permitted by law;
  13. interfere with the operation of the Service or with other users;
  14. register false information;
  15. help others do any of the above; or
  16. do anything else that we reasonably consider inappropriate in light of the above.

Article 10. Suspension and Termination

  1. If you violate these Terms, register false information or do not pay the charges (Article 5, paragraph 7), or if we reasonably determine that your use is unlawful or puts the Service, other users or third parties at risk, we may suspend Runs and 3D Conversions, suspend or close your account, or delete Your Content. We will notify you in advance unless it is urgent or otherwise necessary not to.
  2. You may stop using the Service at any time. To close your account and delete your data, contact us from your registered email address (Article 19). We will close the account and delete the data within a reasonable period.
  3. Except as provided in Article 13, we are not liable for damages resulting from measures taken under this Article.

Article 11. Interruption, Changes and Discontinuation of the Service

  1. We may suspend all or part of the Service without prior notice in the following cases. Runs and 3D Conversions may then be delayed, stopped or fail, and are charged in accordance with Article 4.
    1. maintenance or updates of the Service;
    2. failures of our systems or of services we use, such as AWS or Stripe;
    3. a shortage of server capacity;
    4. fire, power outage, natural disaster, war, epidemic or other events beyond our control; or
    5. other cases where we reasonably determine it necessary, such as for security.
  2. We may change or end features of the Service. When we end the whole Service, we will announce it at least 30 days in advance, except in an emergency, so that you can download your data.
  3. Except as provided in Article 13, we are not liable for damages resulting from the suspension, change or end of the Service.

Article 12. Disclaimer

  1. Runs are processed automatically, and the outcome depends on the photos and videos and on the subject. We do not guarantee that a Run or 3D Conversion will succeed, that the Results will have any particular accuracy (such as dimensions, scale, shape or color), completeness or quality, that they are fit for a particular purpose (such as measurement, surveying, construction, manufacturing or other safety-related uses), or that they work with other software.
  2. Estimated processing times and price charts are for reference only.
  3. We do not guarantee that the Service will be uninterrupted or error-free, or that data will never be lost.
  4. Services provided by third parties, such as Stripe and Sign in with Google, are subject to their own terms.

Article 13. Limitation of Liability

  1. If we are liable to you for damages in connection with the Service, whether for breach of contract, tort or otherwise, our liability is limited to the direct and ordinary damages you actually incurred, up to the total amount you paid us for the Service during the three months before the day on which the cause of the damages occurred.
  2. Paragraph 1 does not apply where the damages are caused by our willful misconduct or gross negligence.

Article 14. Privacy

We handle information about you, including personal information, in accordance with our Privacy Policy.

Article 15. Notices

  1. We give notices by email to the address registered to your account, or by posting them on the Service.
  2. Run completion emails can be turned off on your Profile page. Emails about your account, payments and important notices are sent regardless of that setting.

Article 16. Changes to These Terms

  1. We may change these Terms in accordance with Article 548-4 of the Civil Code of Japan, where the change is in the general interest of users, or is reasonable in light of the purpose of these Terms, the need for the change, the appropriateness of its content and other circumstances.
  2. When we change these Terms, we will announce the change, the revised Terms and the date they take effect on this website before that date, and notify users with an account by email. Changes that are unfavorable to users, such as an increase in the storage fee, will be announced at least 14 days before they take effect.
  3. The revised Terms apply from the date they take effect. Runs and 3D Conversions started before that date are charged in accordance with the Terms in effect when they were started.

Article 17. General Provisions

  1. You may not transfer your position under these Terms, or your rights or obligations under them, to a third party without our prior consent. If we transfer the business of the Service to a third party, we may transfer our position, rights and obligations under these Terms and your information to that party, and you consent to this in advance.
  2. If any provision of these Terms is held invalid or unenforceable under the Consumer Contract Act of Japan or any other law, the remaining provisions remain in full effect.
  3. These Terms are written in English. If a translation is provided, the English version prevails.

Article 18. Governing Law and Jurisdiction

  1. These Terms are governed by the laws of Japan.
  2. The Tokyo District Court has exclusive jurisdiction as the court of first instance over any dispute arising out of or in connection with these Terms or the Service.

Article 19. Contact

For questions about these Terms or the Service, please contact us at:

Email: admin@convert-2d-to-3d.info
Business hours: Monday to Friday, 9:00 AM to 5:00 PM (JST)

We will disclose our name, address and telephone number without delay upon request. For users in Japan, see also the 特定商取引法に基づく表記.