Terms of Service

These terms explain your rights and obligations, and ours, when using saidosi accounts, AI features, and membership services.

Updated: August 12, 2026

Operator, scope, and acceptance

saidosi is operated by ZHIYI LIN ("we"). For questions about these terms, consumer complaints, or legal matters, use the Support page or email leyinzylin@gmail.com.

By selecting "Sign In or Register", continuing to use AI features, or confirming a purchase, you acknowledge that you have read and accepted these terms. If you disagree, do not register, send AI requests, or purchase a membership.

The license for an app obtained through Apple is also governed by the Apple Standard EULA. These terms supplement it for accounts, AI, membership, user content, and support. Mandatory provisions of applicable law take precedence.

Eligibility and service scope

saidosi is not intended for children under 14. It supports personal information organization, recording, retrieval, and general productivity. It is not a medical, legal, financial, emergency, or other service requiring professional qualifications.

Provide accurate registration details, protect your credentials, and take responsibility for activity under your account. Contact us through the Support page promptly if you discover unauthorized use.

AI output and identification

saidosi uses AI to generate replies. AI output is distinguished from user input by the assistant reply presentation in the app; it is not advice from a human professional. Output may be incomplete, inaccurate, outdated, or unsuitable for your circumstances. Important decisions should be independently verified by you or a qualified person.

AI output may not be unique and may resemble other content. Before copying, forwarding, or publishing it, verify accuracy and third-party rights. Keep or add AI-generated content identification as required by law, and do not mislead others into treating it as human-created content or a professional conclusion.

Your content and feedback

You retain rights in lawful inputs and local content. You authorize us to process them only as necessary to fulfill your requests, provide and protect the service, handle feedback, and comply with law, as explained in the Privacy Policy. To the extent allowed by law, providing the service does not give us a claim to rights you may legally hold in AI output.

Ensure you have the right to submit inputs, feedback, and attachments. Do not submit unnecessary third-party personal information, trade secrets, or restricted materials.

Membership, usage, and the App Store

iOS memberships are monthly auto-renewable services purchased through the Apple App Store. Plan names, localized prices, current usage, and features are shown on the purchase confirmation screen. Unused usage expires at the end of its membership period; it does not roll over, transfer, or convert to cash.

Apple handles payments, renewals, taxes, and refunds. You can manage or cancel subscriptions or request a refund through Apple. If Apple confirms a refund or revokes a membership period, unused usage from that period expires. Deleting a saidosi account does not automatically cancel App Store subscriptions; manage them through Apple first.

Acceptable use, restrictions, and appeals

Do not use the service for illegal activities, infringing others' rights, distributing malicious code, automated abuse at scale, probing unauthorized systems, bypassing usage or security limits, or attempting to obtain other users' data.

To protect users, third parties, and service security, or comply with law, we may restrict content or features, suspend access, or terminate accounts as necessary. Where feasible without undermining risk handling, we will explain why. You can appeal or provide further information through the Support page.

Changes, interruptions, and termination

We aim to keep the service available, but maintenance, networks, third-party services, or events beyond our control may cause interruptions. We will give appropriate notice of material changes to rights and obligations before they take effect, such as page updates or in-app notices. Adverse changes will not retroactively reduce paid benefits for the current period. You can stop using the service or cancel future renewals.

You can delete your account in the app. Account deletion does not automatically delete conversations, notes, folders, or reminders from your device or iCloud, or cancel App Store subscriptions. Transaction, settlement, fraud-prevention, and necessary audit records may be retained for legal and security needs, as explained in the Privacy Policy.

Liability, complaints, and disputes

To the extent allowed by law, we do not promise that the service will always be error-free or uninterrupted. We bear responsibility under applicable law for losses caused by our fault. These terms do not exclude or limit consumers' statutory rights or any liability that cannot legally be excluded.

Submit technical support requests, consumer complaints, AI content reports, data security complaints, and account appeals through the Support page. That page explains the handling process and response times. Disputes arising from use of the service in mainland China are governed by the laws of the People's Republic of China. If negotiation fails, either party may bring a claim before a court with jurisdiction under applicable law.