Terms of use

After formal activation, the license is nonexclusive use by the purchasing account on at most three usable installations during valid entitlement. Identity describes a Windows-user installation, not proof of the same physical machine. Each installation has its own quota, not a shared pool for multiple people. Purchase transfers no software intellectual property. Do not resell or distribute authorization credentials or circumvent entitlement and safety controls without permission, except as applicable law permits. You must have authority to read, process and send the research content to your selected services, and safeguard your account and local authorization records.

First launch is Windows in mainland China, in CNY: Light, up to 5 active notebooks per installation, ¥19/month or ¥199/year; Advanced, up to 15, ¥29/month or ¥299/year; Full, no notebook-count limit, ¥39/month or ¥399/year. Safety and capacity bounds remain. Fewer than six notebooks may use Advanced; adding notebooks never automatically raises the price. Bring a compatible AI account, API key and quota and your own sending mailbox. AI usage fees are paid separately to the provider and are not in the software price. OneNote, AI and email services have their own terms.

Both cadences are active one-time purchases, with no automatic renewal or debit. Verified payment starts the term immediately in Asia/Shanghai, ending at the same local time next calendar month or year, clamped to that month’s last day if necessary. Terms are not fixed 30/365 days. No payable next-term order or advance collection is allowed before the current paid term expires. Buy at expiry or later; late payment starts a new term without charging for the gap. A future plan choice alone neither charges nor expands entitlement. Upgrades require a disclosed adjustment and verified payment; downgrades and cadence changes require confirmation at the applicable boundary and do not themselves mean a refund. These services remain closed.

WeChat Native is the first channel; Alipay awaits separate opening. Neither offers public payment now. Formal delivery requires server verification of the order, amount, currency, account and payment, followed by signed entitlement; return to License in the control center using the same account to complete or refresh authorization. Payment confirmation, issuance and client acceptance are distinct. A payment page or screenshot is not a license. Query the original order if paid but undelivered or uncertain; do not pay again. Manual email reconciliation or code issuance is not promised. Real account verification, transactional mail and consumer activation still require implementation, review and qualification.

The continuous 30-day trial begins at the first successful server activation after account verification: up to 5 notebooks per installation, with up to three installations sharing one expiry. No card or automatic conversion to payment. Reinstallation, recovery, refund or a new local identifier does not restart it. A deliberate first paid purchase may start immediately during trial. Consumer trial and activation services are not open.

At most three usable slots are allowed. Normal upgrades, repairs and reinstalls preserving trusted identity reuse their slot; renewal adds none. Refresh is normally attempted about every 7 days; a signed offline lease lasts at most 30 days and never beyond entitlement expiry. The restricted exception allows one slot replacement per account per 180 days after re-verification. Stopping old-binding refresh is irreversible; the new binding waits for all old leases to expire, up to 30 days, and uses only entitlement still valid then. It adds no fourth slot, extra time or new trial. This rules will be published with service availability and is not implemented or open. If account verification is also lost, recovery or manual fallback is not guaranteed.

Apply for a first-launch WeChat voluntary refund within 365 days after verified successful payment. This is a half-open window excluding its upper bound; statutory obligations remain. A calendar year may contain 366 days, leaving entitlement after the application window. The refund is actual payment for that term × remaining calendar days / total calendar days, rounded down to whole fen, never above payment. The application day is used; remaining days start the next day. Application acceptance, provider processing, final success and funds arrival are separate. Processing does not revoke entitlement; success affects only its corresponding term, and an old-term refund must not cancel a new term. Offline old leases expire by their original deadline, not instantly. See the full refund rules; real self-service refund handling is closed.

Use requires Windows 10/11 x64 and 64-bit Win32 desktop OneNote; the validated environment is Microsoft 365 desktop OneNote. First open authorized shared student notebooks in your own OneNote and finish syncing, then explicitly register the scope. The software reports net text changes and sends reports according to your settings. It does not promise image or attachment analysis, complete backup or successful reading of every page. Incomplete coverage and no-update results are distinct; no update is not proof of complete sync. Review AI output yourself; it does not replace research judgment.

Trial or paid expiry adds no free grace and pauses only future paid automation. History, saved reports, configuration and safe completion of transactions with existing effects remain. Service unavailability neither shortens an existing valid lease nor extends its expiry. Stop future runs and use explicit local governance operations to manage your data. Uninstalling, expiry or refund does not promise erasure of backups, external mail or storage remnants.

Nothing here excludes mandatory rights or obligations under applicable law. The voluntary refund window, support scope and AI limitations do not waive those obligations. Raise disputes through the published contact channel; unresolved matters may be brought to a competent body under applicable law. Updates will identify their version, effective date and changes here and will not retroactively reduce established order rights.

Product documentation and self-help guides are provided; manual technical support, code issuance, unbinding, reconciliation or recovery without credentials are not promised. support@mentorbriefai.com is for product questions, privacy and legally necessary matters, not a current refund or technical support service. Proposed automated account-verification mail is transactional, not manual support. See Privacy for data handling. Do not email student text, credentials or sensitive records.