Privacy Policy

Last updated: January 1, 2026

1. Information We Collect

TI84 Calculator collects minimal data. When you use our website, we may collect:

• Usage data: Pages visited, time on site, browser type, and general geographic region (country-level only) via Google Analytics. This data is anonymized and aggregated.
• Newsletter subscriptions: If you subscribe to our newsletter, we store your email address to send you updates. You can unsubscribe at any time via the link in any email.
• Contact form submissions: If you contact us, we store your name, email, and message to respond to your inquiry.

We do not collect your calculator inputs, equations, or any calculation data. All calculator computation happens locally in your browser.

2. How We Use Your Information

• To provide and improve the TI84 Calculator service
• To send newsletters (only if you subscribed)
• To respond to support inquiries
• To analyze aggregate usage patterns and improve content

3. Cookies

TI84 Calculator uses cookies for:

• Analytics: Google Analytics uses cookies to track anonymous usage statistics. You can opt out at tools.google.com/dlpage/gaoptout
• Preferences: We may use a cookie to remember your calculator mode preference between sessions

4. Third-Party Services

TI84 Calculator uses Google Analytics for website analytics. Google's privacy policy applies to their data collection. We do not sell, trade, or rent your personal data to any third party.

5. Data Retention

Newsletter emails are retained until you unsubscribe. Contact form data is retained for up to 12 months. Analytics data is retained per Google Analytics default settings.

6. Your Rights

You have the right to access, correct, or delete your personal data. To exercise these rights, contact us at privacy@ti84calculator-online.com.

7. Children's Privacy

TI84 Calculator is designed for students of all ages. We do not knowingly collect personal information from children under 13 without parental consent. Our analytics data is fully anonymized.

8. Changes to This Policy

We may update this Privacy Policy periodically. The "last updated" date at the top reflects the most recent revision. Continued use of the site constitutes acceptance of the updated policy.

9. Contact

Questions about this policy: privacy@ti84calculator-online.com