US Stock Screener

Privacy Policy

Last updated: May 31, 2026

This Privacy Policy explains how Daiki Yamaguchi, an individual sole proprietor based in Japan(the “Operator,” “we,” “us”), collects, uses, and shares information when you use US Stock Screener(the “Service”). By using the Service, you agree to this Policy.

1. Information we collect

  • Account information. When you sign in with Google, we receive your name, email address, and profile image from Google to create and identify your account.
  • Subscription and billing information. When you subscribe, our payment processor (Stripe) handles your payment details. We store a customer and subscription identifier and your subscription status; we do not store full card numbers.
  • Usage data. We store data you create in the Service, such as your watchlist. We also process technical information such as your IP address and browser/user agent as part of providing and securing the Service.

2. How we use information

  • to provide, maintain, and improve the Service;
  • to authenticate you and keep your account secure;
  • to process subscriptions, trials, and payments;
  • to communicate with you about your account or the Service; and
  • to comply with legal obligations and enforce our terms.

3. How we share information

We do not sell your personal information. We share information only with service providers that help us operate the Service, and only as needed for that purpose:

  • Google — authentication (sign-in).
  • Stripe — payment processing and subscription management.
  • Cloudflare — hosting, database, and content delivery.
  • Google Analytics — aggregate usage analytics for the site and app.

We may also disclose information if required by law, to protect our rights, or in connection with a business transfer. These providers process your data under their own privacy policies.

4. Cookies and sessions

We use cookies and similar technologies that are necessary to sign you in and keep your session active. We also use Google Analytics, which sets cookies to measure aggregate usage of the site and app. We do not use cookies for third-party advertising.

5. Data retention

We retain your information for as long as your account is active or as needed to provide the Service. We may retain certain information as required to comply with legal obligations, resolve disputes, and enforce our agreements. When data is no longer needed, we delete or anonymize it.

6. Your rights

Depending on your location, you may have rights to access, correct, delete, or export your personal information, or to object to or restrict certain processing. To exercise these rights, or to request deletion of your account and associated data, contact us using the details below.

7. Data transfers

The Service is operated from Japan and relies on providers that may process data in other countries. Where information is transferred across borders, we rely on the safeguards offered by those providers.

8. Children’s privacy

The Service is not directed to children under 18, and we do not knowingly collect personal information from them. If you believe a child has provided us information, contact us and we will delete it.

9. Changes to this Policy

We may update this Policy from time to time. When we make material changes, we will update the “Last updated” date above and, where appropriate, provide additional notice.

10. Contact

For privacy questions or requests, contact us at support@usstockscreener.app. The operator's mailing address is available on request via the contact email above.