Terms of Service

These Terms of Service ("Terms") govern your use of "d-bye" (the "Service"), provided by Osakaya System (a sole proprietorship; "we" or "us"). By using the Service you agree to these Terms. For our business contact details, see the Commercial Disclosure.

1. Application

These Terms define the conditions of, and the rights and obligations between us and users relating to, the Service, and apply to all matters concerning use of the Service.

2. Eligibility and Age

The Service is not available to anyone under 13 years of age. If you are a minor under the laws of your country or region of residence, you may use the Service only with the consent of a parent or legal guardian. If you use the Service on behalf of an organization, you represent that you are authorized to bind that organization to these Terms.

3. Accounts

You are responsible for managing your account credentials (email and password, or the credentials of an external authentication service such as Google) and your usage environment. You must register accurate, up-to-date information; false registration and the sharing or lending of your account to third parties are prohibited. If you discover unauthorized use of your account, you must notify us promptly. We are not liable for damages arising from inadequate management of your account or its unauthorized use by a third party.

4. Fees and Payment

Fees and billing cycles for paid plans are as set out on the pricing page; all displayed prices include applicable consumption tax. Payments are processed through a third-party provider (Stripe), and we do not store your credit card number. Paid plans are charged at signup and renew automatically on each renewal date. To cancel, please do so before your next charge is finalized. Due to the nature of a digital service, we do not provide returns or refunds after purchase, nor prorated refunds for mid-cycle cancellation. After cancellation, you may continue using paid features until the end of the current billing period. If payment cannot be confirmed, we may suspend paid features or restrict your account.

5. Generated Output

You may freely use, modify, and distribute output generated by the Service, including code, design specifications, and configuration files. However, where the output includes libraries, software, templates, or assets in which third parties hold rights, you must comply with those third parties' license terms. We do not warrant the accuracy, operation, legality, or non-infringement of third-party rights of such output. If you use the output in production, commercial services, or business systems, you are responsible for verifying its security, legal compliance, licensing, and operation.

6. AI Features

The AI features may send the text and instructions you enter, project information (project names, table definitions, screen definitions, etc.), generated code, error messages, and other information necessary for AI processing to external AI providers (currently OpenAI in the United States; we may add others in the future) via their APIs. AI-generated results are not necessarily accurate or complete, and we do not warrant them. We do not use your input to train our own AI models; however, the handling of data by external AI providers is subject to those providers' terms and policies and our configuration. Please do not include sensitive information (credit card numbers, government IDs, health information, or third parties' personal or confidential information) in your input. For details on how we handle personal information, see our Privacy Policy.

7. Data Management and Deletion

Project data and uploaded files you save are stored within the limits of your plan. If you cancel a paid plan, we will promptly delete your server-side project data and uploaded files at the end of the current billing period. Deleted data cannot be recovered, so please export anything you need in advance. Note that deleted data may persist for a limited period in records we are legally required to keep (such as payment records) and in backups and logs created in the ordinary course of operations. We use such backups and logs only for purposes such as disaster recovery, and delete them after the applicable retention period.

8. Prohibited Conduct

You may not: (1) violate laws or infringe third-party rights; (2) generate apps or code intended for malware, phishing, spam, or fraud; (3) input third parties' personal or confidential information without authorization; (4) make excessive requests, scrape, or attack the Service with load; (5) circumvent security or usage limits; (6) submit malicious prompts to the AI, evade policies, or otherwise abuse it; (7) misuse third parties' API keys or credentials; (8) generate illegal or harmful content; (9) reverse-engineer, copy, or imitate the Service; or (10) otherwise interfere with the operation of the Service or other users' use of it.

9. Suspension and Account Deletion

We may, without prior notice, suspend your account, restrict use, or delete data if you breach these Terms, if abuse is suspected, if payment cannot be confirmed, or if we otherwise deem it necessary for operating the Service. We are not liable for damages arising from such measures.

10. Intellectual Property

All intellectual property rights in the programs, screens, designs, logos, documentation, templates, and everything else comprising the Service belong to us or the rightful rights holders. Except for the scope of use of generated output set out in Section 5, these Terms do not transfer any such rights to you.

11. External Services

The Service uses external services for payments (Stripe), authentication (e.g., Google), AI processing (e.g., OpenAI), and servers/infrastructure. The Service, in whole or in part, may become unavailable due to the suspension, specification changes, or failures of these external services.

12. Changes, Suspension, and Termination of the Service

We may suspend all or part of the Service without prior notice for maintenance, failure response, suspension of external services, legal necessity, or other unavoidable reasons. If we terminate the Service, we will endeavor to notify users in advance with reasonable notice.

13. Disclaimer of Warranties and Limitation of Liability

The Service is provided "as is" without warranty of fitness for a particular purpose, completeness, or continuity. Except in cases of our willful misconduct or gross negligence, our liability for damages is limited to ordinary and direct damages, up to the total fees you paid us in the preceding 12 months. However, if you are a consumer under the Consumer Contract Act, nothing in these Terms limits the rights afforded to you by that Act or other mandatory laws.

14. Changes to the Terms

We may amend these Terms when we deem it necessary. We will notify users of the content and effective date of changes by posting on the Service, by email, or by other appropriate means. For material changes, we will endeavor to provide a reasonable notice period before the effective date. Your continued use of the Service on or after the effective date constitutes acceptance of the amended Terms.

15. Open Beta and the Founder Plan

We may offer the Service as an open beta before the public launch. Features provided during the beta may change, be suspended, or be discontinued without notice, and we do not warrant their completeness, continuity, or migration to the official version. The "Founder plan" offered during the beta has a limited number of seats; subscribers may use Pro-level features at the monthly price in effect at signup for one year from the public launch date. After that period, the monthly price does not change, but the features provided change to those of the Personal plan.

16. Governing Law and Jurisdiction

These Terms are governed by the laws of Japan, and the Tokyo District Court shall have exclusive jurisdiction as the court of first instance for any dispute arising out of or relating to the Service. However, if you are a consumer, this does not deprive you of the protection afforded by the mandatory provisions of the law of your country or region of residence.

Provider: Osakaya System (sole proprietorship) / Effective date: June 23, 2026