Privacy Policy

Last updated: May 25, 2026

This Privacy Policy describes how tokenmath ("we", "us", "the Site") collects, uses, and protects information when you visit https://gpt-cost.com.

1. Who we are

gpt-cost is operated by Independent Developer, registered in the United States. For any questions about this policy, contact us at hello@gpt-cost.com.

2. What we collect

We aim to collect as little data as possible. Specifically:

Email addresses, only when you voluntarily submit one to unlock the calculator result or subscribe to the changelog. These are stored by our email service provider (Formspree). You can unsubscribe at any time.
Anonymous usage data (page views, referrer, country, browser type) collected by our privacy-friendly analytics. No personal identifiers are stored.
Advertising cookies, set by Google AdSense when you accept cookies, to serve relevant ads. See Section 4 for details and opt-out instructions.

We do not collect or store the text you paste into the calculator. All token counting happens in your browser; nothing is sent to any server.

3. How we use your information

To send the weekly LLM pricing changelog, if you opted in.
To understand which pages are popular and improve content.
To display contextual advertising via Google AdSense, our sole revenue source.

We do not sell, rent, or share your email with third parties.

4. Cookies and Google AdSense

This Site uses Google AdSense to display ads. Google and its partners use cookies to serve ads based on your prior visits to this and other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to our site and other sites on the Internet.

You may opt out of personalized advertising by visiting Google Ads Settings. You may also opt out of third-party cookie use for personalized advertising at aboutads.info.

For visitors from the European Economic Area (EEA), United Kingdom, or Switzerland, we display a consent banner before any non-essential cookies are set. You can change your preferences anytime through the "Cookie Settings" link in our footer.

5. Data retention

Email addresses are retained until you request deletion. Anonymous analytics data is retained for 12 months. Advertising cookies follow Google's retention policy (typically 13 months).

6. Your rights (GDPR / CCPA)

If you are a resident of the European Economic Area or California, you have the right to:

Request access to the personal data we hold about you.
Request correction or deletion of your data.
Object to or restrict processing.
Data portability.
Withdraw consent at any time.

To exercise any of these rights, email hello@gpt-cost.com. We will respond within 30 days.

7. Children's privacy

This Site is not directed at children under 13 (or 16 in the EEA). We do not knowingly collect data from minors.

8. Changes to this policy

We may update this Privacy Policy. The latest version is always available at this URL. Significant changes will be announced via our changelog email.

9. Contact

Questions, requests, or complaints: hello@gpt-cost.com.