Terms of Service

Last Updated: July 2026

Welcome to TI-84 Calculator Online (ti84cal.org). By accessing this website and using our online web application, you agree to be bound by the following terms and conditions. If you do not agree with any part of these terms, you are prohibited from using this site and our online calculator service.

1. License to Use

We grant you a personal, non-exclusive, non-transferable license to access and use the TI-84 online emulator for educational, personal, and instructional purposes. Under this license, you may not:

  • Modify, scrape, reverse engineer, or decompile the core math engine or site scripts.
  • Repackage or redistribute the software engine without prior written authorization.
  • Use the web service in any way that causes server overload or disruptions to other users.

2. Examination & Testing Disclaimer

This web emulator is provided strictly for practice and study purposes. Standardized testing boards (such as SAT, ACT, AP, or state-administered exams) strictly prohibit web-connected devices, laptops, or browser applications inside official testing facilities. Always rely on an approved physical hardware calculator during official examination settings.

3. Third-Party Trademark Disclaimer

TI-84 Calculator Online is an independent educational web tool. We are not affiliated, associated, authorized, endorsed by, or in any way officially connected with Texas Instruments Incorporated, or any of its subsidiaries or affiliates. “TI-84”, “TI-84 Plus”, and “Texas Instruments” are registered trademarks of Texas Instruments Incorporated.

4. Mathematical Accuracy & Limitation of Liability

While we strive to maintain high hardware fidelity and exact calculation processing, this online utility is provided “as-is” without warranty of any kind. In no event shall TI-84 Calculator Online or its developers be held liable for computational errors, exam score variances, or data loss arising out of the use or inability to use the web calculator.

5. Revisions and Errata

The materials and logic engines appearing on our website could include technical, mathematical, or typographical errors. We do not warrant that all calculations or graphing functions on the site are completely error-free. We reserve the right to update or patch features at any time without prior notice.

6. Governing Law

Any claim or dispute relating to TI-84 Calculator Online shall be governed by applicable local and international regulations without regard to its conflict of law provisions.