Effective date: July 10, 2026
Last updated: July 10, 2026
Fengcen LLC, a Wyoming limited liability company ("Fengcen," "we," "us," or "our"), provides Sliprail, including the Sliprail website, desktop application, integrated Nora features, cloud and sync features, shared links, accounts, billing, and customer support (collectively, the "Service").
Fengcen LLC is the controller of personal information covered by this Privacy Policy where applicable law uses that term. This Policy explains what information we collect, where it comes from, how and why we use it, when we disclose it, how long we keep it, and the choices and rights that may be available to you.
Some Sliprail features operate only on your device. Other features require information to be transmitted to Fengcen or third-party providers. This Policy distinguishes those situations below. The general Fengcen Privacy Policy may also apply to your Fengcen account and shared infrastructure.
We may collect:
We may collect products purchased, subscription status, payment status, billing address, tax information, invoices, refunds, plan-credit grants, purchased-credit balances, and credit usage records.
Payment processors such as Stripe generally handle complete payment-card numbers, which we do not ordinarily receive. We receive transaction identifiers and status information needed to administer the purchase.
Depending on the feature, we may process:
When you use the Service, we may automatically collect:
We may receive information from:
Installing Sliprail does not by itself cause Fengcen to receive the contents of your local files, screenshots, clipboard, camera, microphone, or continuous keyboard input.
Sliprail may locally access or store such data when you deliberately use or enable a feature that requires it. Examples include file analysis, AI screenshot workflows, file search, clipboard history, voice or media features if offered, and connected tools.
Clipboard history is disabled by default. If you enable it, Sliprail automatically records supported clipboard content on your device according to your retention settings. Recording copied files and images is separately disabled by default. Clipboard cloud sync is also disabled by default. If you separately enable clipboard cloud sync, text clipboard history may be transmitted and stored through the cloud-sync service. Clipboard images and copied files are not uploaded by the clipboard-sync feature and remain on your local device.
Other local content is transmitted only when an online, sync, sharing, support, AI, search, or connected feature requires transmission or when you otherwise choose to send it. Review feature settings and permissions before use.
We may derive information such as account-security risk, likely location, feature preferences, and Service performance from the information above. We may also create aggregated or de-identified information that is not reasonably linkable to an individual and use it for analytics, security, research, and product improvement.
We use personal information to:
Where the laws of the European Economic Area, United Kingdom, or another jurisdiction require a legal basis, we rely on one or more of the following:
You may decline to provide optional information or keep optional cloud features disabled. If information is necessary to create an account, complete a purchase, secure the Service, or perform a requested online feature, we may be unable to provide that part of the Service without it.
When you use Nora or another online AI feature, the prompts, files, images, screenshots, conversation content, instructions, outputs, and related metadata needed to fulfill your request may be sent to Fengcen and to the AI, search, hosting, or tool providers that power the feature.
When you install or connect an extension, MCP server, plugin, or other tool, it may access information and device capabilities based on the permissions and actions you approve. Third-party tools may send information to their own providers and are governed by their own terms and privacy policies.
Fengcen does not use the specific content you submit to AI features, or the specific outputs generated from that content, to train Fengcen's own AI models unless we separately ask for and obtain permission. We may use limited operational metadata and aggregated or de-identified information to secure, operate, and improve Sliprail.
Third-party providers may retain or use information under their own policies. Even if Sliprail describes a request as temporary, ephemeral, or non-persistent on our side, we cannot guarantee that a third-party provider will not retain records under its policies.
Do not submit confidential, regulated, or sensitive information unless you have the right to do so and have determined that the selected feature and provider are appropriate for that information.
We may disclose information in the following circumstances:
We use providers for hosting, storage, databases, content delivery, analytics, security, anti-abuse verification, identity, payments, tax, email, customer support, and software operations. They may process information only for the services they provide to us or as otherwise permitted by their contracts and applicable law.
When you request a feature powered by an AI model, search service, extension, MCP server, integration, or connected tool, we disclose the content and metadata reasonably necessary to complete that request.
We disclose transaction information to payment processors, app stores, resellers, tax providers, banks, and fraud-prevention providers as needed to process and administer purchases, subscriptions, refunds, disputes, and compliance.
If you create a shared link, publish content, collaborate, enable cloud sync, install or connect a third-party tool, or otherwise direct us to disclose information, the selected information may be accessible to recipients, the public, the extension, or the relevant third party.
We may disclose information when reasonably necessary to:
We may disclose information for another purpose with your consent or at your direction.
We do not sell personal information for money. We also do not share personal information for cross-context behavioral advertising or process personal information for targeted advertising as those terms are defined by applicable United States state privacy laws.
If our practices change, we will update this Policy and provide any legally required opt-out mechanism before beginning the new practice.
We retain personal information only for as long as reasonably necessary for the purposes described in this Policy, taking into account the nature and sensitivity of the information, the requested feature, account status, your settings, security needs, legal obligations, and limitation periods.
For example:
Closing an account removes access and initiates deletion or de-identification of information that is not required for a continuing legitimate purpose. Some information may remain in backups for a limited cycle or be retained for legal, accounting, tax, fraud-prevention, security, dispute, and enforcement purposes. We restrict retained information to those purposes and delete or de-identify it when the applicable need ends.
Uninstalling Sliprail does not necessarily remove all local data. Use the relevant in-product deletion controls or your operating system's application-data controls if you want to remove local data.
We use commercially reasonable technical, administrative, and organizational measures designed to protect personal information. No method of transmission, processing, or storage is completely secure, and we cannot guarantee absolute security. You should use a strong, unique password, protect your devices, review extension permissions, and promptly notify us of suspected unauthorized access.
Fengcen is based in the United States. We and our providers may process information in the United States and other jurisdictions where we or they operate. Those jurisdictions may have data-protection laws that differ from the laws where you live.
Where applicable law requires safeguards for an international transfer, we use a legally recognized transfer basis or take other measures required by law, which may include contractual protections. You may contact us for additional information about safeguards relevant to your information.
Depending on your location and how you use Sliprail, you may have rights to:
Residents of jurisdictions with United States state privacy laws may also have rights to know categories and specific pieces of information, correct, delete, obtain portability, opt out of sale, sharing, targeted advertising, or certain profiling, appeal a denied request, and receive equal service without unlawful discrimination. We do not currently engage in sale, sharing for cross-context behavioral advertising, or targeted advertising as described above.
You can manage many choices through Sliprail settings, including cloud sync, clipboard history, clipboard cloud sync, sharing, conversation history, and extension permissions where available.
To submit a privacy request, email support@fengcen.com. We may need to verify your identity and authority before completing a request. An authorized agent may submit a request where permitted by law, but we may require proof of authorization and direct identity verification. We will respond within the period required by applicable law and explain any available appeal process.
Some rights are subject to exceptions, including where information is needed to complete a transaction, protect security, comply with law, preserve legal claims, or exercise free-expression or other rights.
You can control many cookies and similar technologies through browser or device settings. Blocking necessary cookies may prevent account, security, payment, or other core features from functioning.
You may unsubscribe from marketing emails using the link in the message or by contacting us. Even if you opt out of marketing, we may still send non-promotional communications about your account, transactions, security, or material Service changes.
Browser "Do Not Track" signals are not interpreted consistently across the industry. Where required, we honor legally recognized opt-out preference signals for practices to which those signals apply. Because we do not currently sell or share personal information for cross-context behavioral advertising, such signals do not change those practices.
Sliprail is not directed to children under 13, and we do not knowingly collect personal information from children under 13. If local law requires a higher age for a child to consent to data processing, a parent or legal guardian must provide any required permission. If you believe a child provided information without required permission, contact us so we can take appropriate action.
We may update this Policy to reflect changes in Sliprail, our practices, or legal obligations. The updated Policy will state a new effective date. We will provide additional notice of material changes where required by law. Changes do not reduce rights that have already accrued under applicable law.
Fengcen LLC
You may use the email above for privacy questions, rights requests, and complaints.