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Privacy Policy

Last updated: February 8, 2026

1. Information We Collect

When you use linGhost, we collect the following information:

  • Google Account Information: When you sign in with Google, we receive your display name, email address, and profile photo URL.
  • Generated Stories: The stories you generate, including the keywords, settings, and output text, are stored in association with your account.
  • Usage Data: We may collect basic usage information such as generation timestamps and feature usage to improve the Service.

2. How We Use Your Information

We use the collected information to:

  • Provide and maintain the Service
  • Authenticate your identity and manage your account
  • Store and display your generated stories
  • Enforce usage limits (e.g., daily story generation limits)
  • Improve and develop the Service
  • Communicate with you about the Service when necessary

3. Third-Party Services

The Service integrates with the following third-party services:

  • Google Firebase: Used for authentication (Firebase Auth) and data storage (Cloud Firestore). Google's privacy policy applies to their processing of your data.
  • Anthropic API: Your story generation requests (keywords, settings, and theme notes) are sent to Anthropic's Claude API to generate stories. Anthropic's privacy policy governs their handling of this data.
  • Stripe: Payment processing for paid subscriptions is handled by Stripe. We do not store your payment card details. Stripe's privacy policy applies to payment data.
  • Google Analytics: We use Google Analytics 4 to collect anonymous usage statistics such as page views, session duration, and general device/browser information. Google Analytics uses cookies (_ga, _ga_*) to distinguish unique visitors. This data helps us understand how the Service is used and identify areas for improvement. Analytics cookies are only set after you provide consent via our cookie banner. You can learn more about how Google processes data at Google's Privacy Policy. You may also opt out of Google Analytics by installing the Google Analytics Opt-out Browser Add-on.

4. Cookies and Local Storage

The Service uses the following types of cookies and local storage:

  • Essential Cookies: Used for authentication session management. These are required for the Service to function and cannot be disabled.
  • Analytics Cookies: Google Analytics cookies (_ga, _ga_*) are used to collect anonymous usage statistics. These are only set after you provide consent via our cookie banner.
  • Cookie Consent Preference: We store your cookie consent choice in browser local storage so that we do not ask you repeatedly.

We do not use third-party advertising cookies.

5. Data Retention

Your account information and generated stories are retained as long as your account is active. If you wish to delete your account and associated data, please contact us at the email address below. We will process deletion requests within a reasonable timeframe.

6. Data Security

We implement reasonable security measures to protect your data, including encrypted connections (HTTPS), secure authentication through Firebase, and server-side access controls. However, no method of transmission or storage is 100% secure, and we cannot guarantee absolute security.

7. Your Rights

You have the right to:

  • Access the personal data we hold about you
  • Request correction of inaccurate data
  • Request deletion of your data
  • Withdraw consent for data processing
  • Request a copy of your data in a portable format

To exercise any of these rights, please contact us at the email address below.

8. Children's Privacy

The Service is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13. If we become aware that we have collected data from a child under 13, we will take steps to delete that information.

9. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated date. Your continued use of the Service after changes are posted constitutes your acceptance of the updated policy.

10. Contact

If you have any questions about this Privacy Policy, please contact us at tomoya.fujita@fluxenic.com.