Privacy Policy

1. Overview

GiantSight ("we", "us", "our") is committed to protecting your personal information and processing it lawfully. This Privacy Policy explains what information we collect, how we use it, and your rights.

2. Information We Collect

2.1 Google Login Information

When you sign in with Google, we collect:

• Name
• Email address
• Profile photo
• Google Account ID

2.2 User Activity Information

The following information is automatically collected during service use:

• Favorited investors and stocks
• User preferences (language, theme, etc.)
• Service usage logs (page visits, clicks, etc.)

3. How We Use Your Information

We use the collected information for:

• Creating and authenticating user accounts
• Providing personalized services like favorites and portfolio tracking
• Improving service and user experience
• Service analytics and statistics (in aggregated and anonymized form)

4. Data Storage and Security

User information is securely stored in Google Firebase Firestore with the following security measures:

• Encrypted data transmission (HTTPS)
• Access control through Firebase security rules
• Regular security audits and updates

International Data Transfer: Your personal information may be stored on Google LLC servers (United States and other countries).

5. Third-Party Sharing

We do not sell or rent your personal information to third parties. We only share information with third parties in the following cases:

• When necessary to provide services (Google Firebase, Amplitude, etc.)
• To comply with legal obligations
• With explicit user consent

Amplitude Analytics: We may send the following to Amplitude, Inc. for usage analytics:

• Signed-out users: anonymous user ID stored in the browser, device and browser information, and usage events (page views, clicks, etc.)
• Signed-in users: internal account ID, email address, authentication provider (Google), sign-in/sign-out events, and usage events (page views, clicks, etc.)

We do not send your Google profile name or profile photo to Amplitude. We do not sell or rent analytics data to third parties.

6. Your Rights

You have the following rights:

• Request access to your personal information
• Request correction or deletion of personal information
• Request restriction of processing
• Request account deletion

To exercise these rights, please contact us using the information below.

7. Cookies and Analytics

We use the following analytics tools:

• Amplitude Analytics: Analyze usage patterns and improve service (includes email and account ID when signed in; includes automatic page views)
• Vercel Analytics: Monitor website performance

Amplitude data may be stored and processed on servers outside your country (including the United States).

8. Data Retention

User information is retained while your account is active. Upon account deletion, all personal information is immediately deleted and may be retained for up to 30 days if required for legal compliance.

9. Protection of Minors

This service is not intended for children under the age of 14, and we do not knowingly collect personal information from children under 14. If we discover that personal information from a child under 14 has been collected, we will take immediate steps to delete such information.

10. Changes to This Policy

This Privacy Policy may be updated to reflect changes in laws or services. We will notify you of significant changes through our website or by email.

11. Contact Us

If you have any questions about privacy, please contact us at:

• Email: giantsight.contact@gmail.com
• Service: GiantSight