These Terms of Service ("Terms") set forth the conditions for use of the online service “Sapot‑san” (the "Service") provided by Builto Inc. ("Company", "we", "us" or "our").
Purpose of these Terms
These Terms govern the provision and use of the Service.
Definitions
In these Terms, the following terms have the meanings set out below.
“Service Agreement”: The agreement regarding provision of the Service executed between the Company and a Subscriber.
“Applicant”: A corporation, organization or other entity that applies to the Company to receive the Service.
“Subscriber”: A corporation, organization or other entity that has executed a Service Agreement with the Company and receives the Service.
“End User”: A person authorised by the Subscriber to use the Service.
“User ID”: A code used to identify an End User designated by the Subscriber.
Amendments to these Terms
The Company may amend these Terms at any time by giving prior notice as set out in the following paragraph; the conditions for provision of the Service after amendment shall be governed by the amended Terms.
When making an amendment, the Company shall notify Subscribers or post the amended Terms on the Service with reasonable prior notice; provided, however, that if an amendment benefits Subscribers, the Company may dispense with such notice period.
If a Subscriber does not agree to the amended Terms, the Subscriber may terminate the Service Agreement during the notice period by notifying the Company, notwithstanding any provisions of the Service Agreement.
Application for a Service Agreement
An Applicant shall apply for use of the Service in the manner prescribed by the Company after consenting to these Terms. The Service Agreement is formed when the Company accepts the application through its prescribed procedures, and these Terms form part of the Service Agreement.
Notwithstanding the preceding paragraph, the Company may refuse or withhold acceptance of an application in any of the following cases:
The Applicant does not in fact exist;
The application form prescribed by the Company contains false information or omissions;
The Applicant has previously delayed payment of Service fees or attempted to evade payment;
The intended use of the Service appears to differ from its original purposes, such as for evaluation or analysis;
The Applicant or its representatives/officers are, or are suspected of being, an antisocial force (including organised crime groups and their members); or
Any other case the Company deems inappropriate.
If the Company refuses or withholds acceptance pursuant to the preceding paragraph, it will notify the Applicant (or Subscriber). The Company shall bear no liability for such refusal or withholding.
Scope of the Service
Under the conditions specified by the Company, the Company will provide an environment in which the Subscriber can use the Service by connecting, via telecommunications lines, from the Subscriber’s managed devices (smartphones, mobile phones, PCs, etc.; "Devices") to servers designated by the Company.
Software necessary for use of the Service can be obtained via application distribution services provided by third parties ("Distribution Services"). The Company makes no warranty regarding the performance, content or continuity of any Distribution Service. The Company bears no liability if the Subscriber is unable to obtain software due to suspension or discontinuation of a Distribution Service for any reason.
Restrictions
The Service is provided for the Subscriber’s own internal business use only and may not be used for commercial purposes (including providing services to third parties, whether for consideration or not).
The Service shall be used by connecting from Devices to the URL designated by the Company; except for mobile applications, the software constituting the Service may not be downloaded, copied or otherwise obtained.
The Subscriber may not use the Service simultaneously from multiple Devices with the same User ID.
The Subscriber may permit use of the Service only to persons approved by the Subscriber (including its officers, employees and employees of its business partners, but not limited thereto).
The Subscriber shall ensure, under its responsibility, that End Users are informed of and comply with the conditions set forth in these Terms.
The Subscriber shall obtain End Users’ consent to these Terms and to the Sapot‑san Privacy Policy under the Subscriber’s responsibility.
Changes to the Service
The Company may add to or change a part of the Service at its discretion for the purpose of adding functions or improvements; provided, however, that the Company does not guarantee that all functions and performance of the Service as provided before the change will be maintained.
User ID and Password
The Company may issue a User ID and password for each End User to the Subscriber in accordance with the methods and conditions prescribed by the Company.
The Subscriber shall strictly manage User IDs and passwords to prevent unauthorised use.
The Subscriber may not disclose or lend a User ID to any third party under any circumstances.
Except where due to reasons attributable to the Company, the Company bears no liability for damage arising from unauthorised use of User IDs or passwords. Any use of the Service after authentication of a User ID and password (except where attributable to the Company) shall be deemed to be an act of the Subscriber.
Addition or Deletion of End Users
The Subscriber may increase or decrease the maximum number of End Users specified in the Service Agreement by applying in the manner prescribed by the Company. Article 4 applies mutatis mutandis to such application.
Upon the Company’s acceptance of the above application, the Subscriber shall pay Service fees based on the revised number of End Users.
If the Subscriber increases End Users in excess of the maximum number without following the procedures in this Article, the Company may take measures such as termination under Article 28 or usage restrictions under Article 29.
Administrator
The Subscriber shall appoint an administrator for use of the Service, notify the Company in writing, and liaise with the Company through that administrator.
If the administrator changes, the Subscriber shall promptly notify the Company.
The Subscriber shall have the administrator supervise compliance with these Terms and shall be responsible for all acts, statements and notices of the administrator.
Use of User IDs
When the Company issues User IDs, the Subscriber shall designate End Users and assign one User ID per End User.
The Subscriber is responsible for the assignment and use of User IDs and shall prevent unauthorised sharing of IDs with persons who do not hold them.
Telecommunications Lines
The Subscriber shall secure and maintain, at its own responsibility and expense, the telecommunications lines connecting its Devices to the Service, and the Company bears no responsibility whatsoever in this regard.
Data Management
The Subscriber shall retain, under its responsibility, the data input, provided or transmitted in relation to use of the Service.
The Company may, for the purpose of restoring data lost due to equipment failure, etc., separately record and store such data for a certain period, but is under no obligation to restore it.
Management of Personal Information
If data input into the Service contains personal information, the Company will not use such information for purposes other than provision of the Service and will take reasonable safeguards in accordance with the Act on the Protection of Personal Information and the Company’s Privacy Policy.
Personal information that is no longer necessary for provision of the Service will be promptly deleted under the Company’s responsibility without retaining any copies.
This Article survives termination of the Service Agreement.
Handling of user information by the Company is governed by the Sapot‑san Privacy Policy, and End Users consent to such handling.
To provide this service, our company may share certain personal information, as well as information entered by subscribers and users, with the following third-party service providers: Slack, Amazon Web Services, Microsoft Azure OpenAI, and OpenAI.
Please refer to the privacy policies below for further details:(1) Slack Privacy Policy: https://slack.com/intl/ja-jp/trust/privacy/privacy-policy
(2) Amazon Web Services Privacy Policy: https://d1.awsstatic.com/legal/privacypolicy/AWS_Privacy_Notice_2024-07-01_JA-JP.pdf
(3) Microsoft Azure OpenAI Privacy Statement: https://www.microsoft.com/ja-jp/privacy/privacystatement
(4) OpenAI Privacy Policy: https://openai.com/ja-JP/policies/row-privacy-policy/For the purpose of operating, maintaining, and analyzing errors in this service, our company may share error log data and other related usage data with Functional Software, Inc. (U.S.).
Please refer to the following for more information:Functional Software, Inc.
Terms of Service: https://sentry.io/terms/
Privacy Policy: https://sentry.io/privacy/
Management and Use of Information by the Company
For the purposes of improving and maintaining the Service, enhancing its quality, conducting AI functional improvements that do not involve retraining large‑language models (e.g., prompt tuning, behaviour refinement), and developing new services, the Company may, by itself or through a subcontractor, collect and use (or convert into statistical data within the necessary scope) information regarding the Contractor’s use of the Service, information entered by Users in the Service, and information output by the Service, and may analyse or further process such information. The Contractor hereby consents to such collection, use, analysis and secondary processing.
The Company will exercise due care in keeping confidential and managing data input by Subscribers.
If the Company is legally compelled by a court or government authority to disclose or submit data input by a Subscriber, the Subscriber shall not object.
The Subscriber authorises the Company to access servers designated by the Subscriber as necessary to provide the Service.
The Subscriber grants the Company a licence to use data input by the Subscriber to the extent necessary to provide the Service; the Company may process such data into a de‑identified form at its discretion.
Caution Regarding Use of AI
The Service is under development and may contain defects, faults, malfunctions or inaccuracies; End Users acknowledge that no warranties are provided.
The Service uses the services of the companies listed below, and use of the Service is subject to their terms and privacy policies, which the Subscriber agrees to comply with.
Slack
Terms of Service: https://slack.com/intl/ja-jp/main-services-agreement
Privacy Policy: https://slack.com/intl/ja-jp/trust/privacy/privacy-policyAmazon Web Services (AWS)
Terms of Use: https://aws.amazon.com/jp/aup/
Privacy Policy: https://d1.awsstatic.com/legal/privacypolicy/AWS_Privacy_Notice_2024-07-01_JA-JP.pdfMicrosoft Azure OpenAI
Code of Conduct / Terms: https://learn.microsoft.com/en-us/legal/cognitive-services/openai/code-of-conduct
Privacy Policy: https://www.microsoft.com/ja-jp/privacy/privacystatementOpenAI
Terms of Use: https://openai.com/ja-JP/policies/terms-of-use/
Privacy Policy: https://openai.com/ja-JP/policies/row-privacy-policy/
Note: The Company uses OpenAI’s API platform. Under the specifications in effect since 1 March 2023, data sent via this API is not used for training large‑language models unless the user explicitly opts in. Accordingly, information entered by Users through the Service is not used by OpenAI for model training.
Payment of Service Fees
The Subscriber shall pay the Service fees and applicable taxes ("Fees") from the effective date of the Service Agreement until its termination.
Fees are payable even if the Service cannot be used during the term due to suspension or discontinuation.
Fees shall be paid by the method designated by the Company, and any transfer or other charges shall be borne by the Subscriber.
Late Payment Charges
If the Subscriber fails to pay Fees by the due date, it shall pay interest at 14.6 % per annum on the overdue amount from the day after the due date until payment.
Subcontracting
The Company may subcontract all or part of its duties for provision of the Service to a third party without the Subscriber’s consent, provided that the Company will appropriately manage such subcontractor.
Prohibited Acts
The Subscriber shall not conduct any of the following acts when using the Service:
Acts in violation of laws or regulations, or that may violate them;
Acts contrary to public order and morals;
Inputting or outputting information via the Service that violates laws, public order or morals, or contains violent or defamatory expressions;
Infringing the rights or interests of the Company, other users or third parties;
Placing excessive burden on the Service’s network or systems;
Obstructing use of the Service by other Subscribers;
Unauthorised access to or interference with hardware or software constituting the Service;
Obstructing provision of the Service;
Analysing, reverse‑engineering or attempting to obtain source code of software constituting the Service;
Using or attempting to acquire another person’s User ID;
Viewing, altering or falsifying data of other Subscribers;
Adding End Users in excess of the maximum without following prescribed procedures; or
Any other act the Company deems inappropriate.
Intellectual Property Rights
All intellectual property rights and other rights related to the tangible and intangible components constituting the Service (software programs, databases, icons, images, texts, manuals, etc.) belong to the Company or third parties who have licensed them to the Company.
Liability for Infringement
If a third party makes a claim regarding intellectual property against the Subscriber in connection with use of the Service, the Subscriber shall promptly notify the Company in writing and handle such claim at its own responsibility and expense.
Principle of Self‑Responsibility
The Subscriber is solely responsible for use of the Service and all actions (registration, browsing, deletion, transmission of information, etc.) and results thereof.
If the Subscriber causes damage to a third party, or receives claims from a third party, due to reasons attributable to the Subscriber, the Subscriber shall resolve such matters at its own responsibility and expense.
If the Subscriber causes damage to the Company through wilful misconduct or negligence, it shall compensate the Company for such damage.
Limited Warranty
The Company warrants only that the Service will be provided substantially and materially as specified.
The Company does not warrant the absence of bugs, suitability for specific purposes, legal compliance for End Users, non‑infringement of rights, or continuous availability, nor does it warrant operation when used with other software.
In case of material defects, the Company’s liability is limited to commercially reasonable efforts to correct or remove defects.
This Article constitutes the sole warranty regarding the Service.
Disclaimer and Limitation of Liability
The Company’s liability regarding the Service is limited as set forth in these Terms.
Even if damage arises from reasons attributable to the Company, the Company’s liability is limited to the amount of Fees paid by the Subscriber for the month immediately preceding the event.
The Company is not liable for lost business opportunities, lost profits, or damage due to loss or corruption of data, regardless of the cause of action.
Suspension of the Service
The Company may temporarily suspend the Service for maintenance on a scheduled or as‑needed basis.
The Company will notify Subscribers in advance of maintenance; provided, however, that in emergencies the Service may be suspended without prior notice, and notice will be given promptly thereafter.
The Company may also suspend the Service if continuation would seriously affect Subscribers due to unauthorised acts of third parties or other unavoidable reasons.
The Company bears no liability for any disadvantage or damage caused by suspension under this Article.
Discontinuation of the Service
The Company may discontinue all or part of the Service at any time.
In principle, the Company will give at least three months’ notice before discontinuation.
If the Company cannot give three months’ notice due to unforeseen or unavoidable reasons, it will notify Subscribers as soon as reasonably possible.
The Company bears no liability for results of discontinuation once notice is given in accordance with this Article.
Termination by the Company
The Company may terminate all or part of the Service Agreement without notice if the Subscriber:
Performs acts obstructing the Company’s business;
Is subject to attachment, provisional attachment, provisional disposition, tax delinquency, or similar governmental measures, or files for bankruptcy, civil rehabilitation, corporate reorganisation or special liquidation;
Resolves to dissolve or transfer all business;
Becomes insolvent, such as dishonour of bills or cheques;
Receives suspension of business or revocation of licence from supervisory authorities; or
Falls under any item of Article 5(2).
If the Subscriber breaches the Service Agreement ("Default"), and fails to cure the Default within 14 days after written notice, the Company may terminate all or part of the Service Agreement.
Usage Restrictions
The Company may restrict use of the Service if the Subscriber:
Falls under any item of Article 28(1) or (2);
Becomes unreachable;
Fails to pay Fees by the due date;
Otherwise when restriction is deemed necessary by the Company.
The Company bears no liability for damage arising from such restriction.
Post‑Termination Handling
Upon termination of the Service Agreement for any reason, the Subscriber shall immediately cease use of the Service.
The Company is not obliged to compensate for any loss arising from cessation of use.
Notices
Notices relating to the Service or these Terms from the Company to Subscribers shall be given by e‑mail or other method prescribed by the Company and shall be effective upon dispatch.
Assignment of Rights and Obligations
The Subscriber may not assign, transfer, succeed to or pledge its contractual position under the Service Agreement or any rights or obligations thereunder to a third party.
Force Majeure
The Company is not liable for delay or failure of performance caused by force majeure such as natural disasters, changes in laws or regulations, or other unavoidable events.
Consultation
If any doubt, dispute or matter not provided in these Terms arises, the parties shall consult in good faith to resolve it amicably.
Governing Law and Jurisdiction
These Terms and the Service Agreement are governed by the laws of Japan. The Tokyo District Court has exclusive jurisdiction as the court of first instance.
Revision History
21 September 2024 — Established
22 July 2025
Revision detail: Clarified wording (added definition of “AI functional improvement” in Article 15 and note on OpenAI API training settings in Article 16)
This revision does not change the service content or the rights and obligations of users.
This English version is provided for reference only. In the event of any discrepancy, the Japanese version shall prevail.