Privacy Policy

1. Summary of Our Core Privacy Promise

At TI-30XS Calculator Online (accessible at ti30xscalculator.com), we firmly believe in educational utility without invasive tracking. We do not require accounts, we do not ask for personal identification to use the calculator, and we never transmit or log your calculations on our servers.

2. Client-Side Calculation Privacy

All mathematical operations, trigonometric equations, statistical data entries, and calculation histories generated within the TI-30XS simulator execute exclusively within your local web browser environment (client-side execution).

Your numbers, homework formulas, exam prep equations, and session outputs are never uploaded to our servers, never stored in remote databases, and never analyzed for profiling purposes. When you close or refresh your browser tab, your session history is cleared from temporary memory.

3. Information We Collect Automatically

Like virtually all modern web properties, when you visit our website, our web servers and content delivery network (CDN) providers may automatically log standard non-personally identifiable technical information, including:

• Browser type and version (e.g., Chrome, Safari, Firefox, Edge)
• Operating system (e.g., Windows, macOS, ChromeOS, iOS, Android)
• Referring website or search query
• Pages visited, time spent, and timestamps
• General geographical location (country/city level, non-precise)

This technical diagnostic data is strictly used to evaluate site uptime, prevent malicious denial-of-service attacks, and improve simulator compatibility across diverse mobile and desktop devices.

4. Cookies and Local Storage

We do not use tracking cookies to track your activity across third-party websites. We use standard browser localStorage solely for functional user preferences:

• Theme Preference: Storing whether you have selected Dark Mode or Light Mode so your chosen appearance persists between visits.

You can clear or disable localStorage and cookies at any time via your browser settings without losing the core calculation functionality of the website.

5. Children's Privacy (COPPA Compliance)

Our website provides an educational scientific calculator simulator suitable for students of all ages, including elementary, middle, and high school learners. We strictly comply with the Children's Online Privacy Protection Act (COPPA). We do not knowingly collect, solicit, or maintain personal information from children under the age of 13.

6. Third-Party Links & Services

Our website may occasionally link to educational resources (such as official Texas Instruments guidebook manuals or standardized exam rules). We do not control and are not responsible for the privacy policies or practices of external websites. We encourage you to review the privacy policies of any third-party sites you visit.

7. User Rights (GDPR & CCPA)

Under privacy regulations such as the European General Data Protection Regulation (GDPR) and the California Consumer Privacy Act (CCPA), you have the right to request access to, correction of, or deletion of any personal data you may submit to us (such as when sending an email inquiry). Because we do not require account registration or store personal profiles, we hold no linked personal dossiers.

8. Changes to This Policy

We may periodically update this Privacy Policy to reflect technical enhancements or legal updates. Any modifications will be posted on this page with an updated "Last Updated" date.