Privacy Policy

How NNScholar collects, uses, and protects account, research workflow, and billing-related information.

Jul 4, 2026

Introduction

NNScholar is an AI research workspace for literature search, WebUse, desktop research spaces, PDF reading, evidence management, subscriptions, citation tracking, and credit-based plans. We respect your privacy and aim to collect only the information needed to provide the service, protect accounts, process billing, and improve the product.

This policy explains what information we may collect, why we use it, when we share it with service providers, and how you can contact us.

Information We May Collect

Account information
- Such as email address, account name, login state, and security records.
- Used for account creation, authentication, account management, support, and security.
Research workflow information
- Such as saved papers, search activity, subscription rules, PDF-related tasks, AI conversation context, research-space materials, and product actions in WebUse or the desktop app.
- Used to provide literature search, library, AI assistance, subscriptions, evidence management, and cross-device workflows.
Usage and device information
- Such as visited pages, feature usage, browser type, device type, operating system, IP address, logs, and error data.
- Used to keep the service stable, debug issues, prevent abuse, analyze product experience, and improve performance.
Payment and billing information
- When you purchase credits or a plan, we may record order details, plan information, amount, payment status, invoice data, and billing history.
- Sensitive payment credentials such as full card numbers or wallet credentials are generally processed by payment service providers. NNScholar should not store full card numbers in its own business database.
Cookies and local storage
- We may use cookies or similar technologies to keep you signed in, store language preferences, protect account security, measure site usage, and improve the product experience.

How We Use Information

We use information to:

Provide registration, login, session management, and account security.
Provide literature search, library, PDF reading, AI assistance, subscriptions, credit usage, and plan entitlements.
Process orders, payments, refunds, invoices, billing records, and subscription status.
Monitor service reliability, debug issues, prevent fraud, abuse, and unauthorized access.
Analyze product usage and improve the website, WebUse, desktop app, and AI research workflows.
Send account, security, billing, product, or service-related notices when needed.

We do not sell your personal information. We may share information with service providers when necessary to operate NNScholar, including:

Cloud hosting, database, storage, logging, and security providers.
Authentication, email, notification, and customer support providers.
Payment, billing, invoice, and fraud-prevention providers.
AI, search, literature data, analytics, and product monitoring providers.

These providers may process information only as needed to provide services to NNScholar. We may also disclose information when required by law, to protect users, to secure the service, or to handle disputes.

Data Security

We use reasonable technical and organizational measures to protect information, including access controls, encrypted transport, monitoring, and permission separation. No internet service can guarantee absolute security. If you notice suspicious account activity, please contact us promptly.

Data Retention

We retain information for as long as needed to provide the service, meet legal obligations, resolve billing disputes, protect security, and improve the product. When information is no longer needed, we will delete, anonymize, or restrict it as appropriate.

Privacy Policy

Introduction

Information We May Collect

How We Use Information

Data Security

Data Retention

Your Choices

Changes to This Policy

Contact Us