Privacy Policy

Shanghai Yujun Technology Co., Ltd. Privacy Policy

Shanghai Yujun Technology Co., Ltd. ("Yujun Tech," "we," "us," or "our") understands the importance of your personal information. We have established this Privacy Policy to help you understand what data we collect, how we collect it, how we use it, and what rights you have. Please read this Privacy Policy carefully before using our websites, mobile applications, or other services (collectively, the "Services").

1. Data We Collect

We collect the following categories of information:

  • Information you provide directly: When you register an account, use our Services, or communicate with us, you may voluntarily provide personal information such as your name, email address, language preferences, and payment information.
  • Usage data: When you use our tools, we automatically collect information related to your usage behavior, including text you submit for processing, usage frequency, feature preferences, operation logs, and in-app activity.
  • Device information: We collect device-related information when you use our Services, including device model, operating system version, unique device identifiers, network status, IP address, and app version, to optimize service performance and user experience.
  • Payment information: When you make purchases, our payment processors collect billing details. We do not store full payment card numbers on our servers.

2. How Data Is Collected

We collect data through the following means:

  • Direct submission: Information you enter into forms, account registrations, or support requests.
  • Automatic collection: Information collected automatically through cookies, analytics tools, and server logs when you interact with our Services.
  • Third-party integrations: Information received from app stores, payment processors, and authentication providers when you use those services to access our Services.

3. How Data Is Used

The information we collect is used for the following purposes:

  • Providing, maintaining, and improving our LLM-powered tools to ensure proper functioning of core features;
  • Performing text analysis and providing intelligent suggestions on content you submit, based on Large Language Models (LLM);
  • Processing transactions, managing subscriptions, and delivering customer support;
  • Developing and optimizing our AI algorithm models to improve analysis accuracy and service quality;
  • Sending you service-related notifications, including feature updates, security alerts, and billing notices;
  • Monitoring and preventing security threats, fraud, or other illegal activities;
  • Complying with applicable laws and regulatory requirements.

4. Third-Party Service Providers and Data Sharing

We respect your privacy and do not sell your personal data. We may share your information in the following circumstances:

  • Service providers: We may entrust trusted third-party service providers to process your information on our behalf to provide services (such as cloud storage services, data analytics services, payment processing, and customer support platforms). These service providers are bound by strict contractual obligations to process information only according to our instructions and to implement appropriate security measures.
  • App stores and platforms: When you purchase subscriptions through Apple App Store or Google Play, those platforms collect and process transaction data in accordance with their own privacy policies.
  • Legal requirements: We may need to disclose your personal information when required by applicable laws and regulations, legal processes, litigation, or mandatory requirements from government authorities.
  • Business transfers: In the event of a merger, acquisition, or asset sale, we may transfer your personal information. In such cases, we will require the new entity holding your personal information to continue to be bound by this Privacy Policy.

5. Data Retention and Deletion

We retain your personal information only for as long as necessary to fulfill the purposes described in this Privacy Policy, including:

  • Active account data is retained while your account remains active;
  • Usage logs and analytics data are retained for a limited period to support service improvement and security monitoring;
  • Payment records are retained as required by tax and accounting regulations;
  • When you delete your account or request data deletion, we will delete or anonymize your personal information within a reasonable timeframe (typically within 30 days), except where otherwise required by laws and regulations.

6. User Rights and Consent Withdrawal

In accordance with applicable laws and regulations, you have the following rights:

  • Right of access: You have the right to access your personal information and understand how we collect and use your data.
  • Right to rectification: If you find that the personal information we process about you is inaccurate, you have the right to request correction.
  • Right to erasure: Under certain circumstances, you have the right to request the deletion of your personal information, including when the information is no longer necessary, you withdraw your consent, or the processing is unlawful.
  • Right to withdraw consent: When our information processing is based on your consent, you have the right to withdraw such consent at any time. Withdrawal of consent does not affect the lawfulness of processing activities based on consent prior to the withdrawal.
  • Right to data portability: You have the right to obtain your personal information in a structured, commonly used, and machine-readable format and to transfer your information to other service providers.

To exercise the above rights, please contact us using the contact information provided at the bottom of this Privacy Policy. We will respond within fifteen business days of receiving your request.

7. Account Deletion and Data Deletion Requests

You may request deletion of your account and associated personal data at any time. To do so:

  • Use the account deletion feature available in your account settings within our mobile applications, if provided;
  • Or email us at support@yujuntechai.com with the subject line "Account Deletion Request" and include the email address associated with your account.

Upon receiving a valid request, we will delete or anonymize your personal information within a reasonable timeframe (typically within 30 days), except where retention is required by applicable laws or for legitimate business purposes such as fraud prevention or financial record-keeping.

8. Contact Information

If you have any questions about this Privacy Policy, wish to exercise your user rights, or need to request account deletion, please contact us:

We will process and respond to your requests as soon as possible after receiving them.

Last updated: June 2026