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Terms of use

Last updated 2026

E-Code is a study and practice tool: it turns a plain-language request into a TI-BASIC program, runs it on a virtual screen, and can send it to a real calculator. Using it means you agree to the following.

What this is for

This app is built to help you understand and practice writing calculator programs — to see a program run before you trust it, and to learn from how it's put together. It is not a substitute for learning the material, and it is not designed to be used to circumvent any exam, assignment, or classroom rule. Whether and how any calculator assistance is permitted in a specific class, exam, or institution is set by that school, teacher, or testing body, not by us. You are responsible for knowing and following those rules; we are not.

AI-generated content

Automatic program generation (once billing is live) is produced by an AI model (Anthropic's Claude), not a human reviewer and not a fixed library of pre-written programs. AI-generated output can be wrong, incomplete, or not what you asked for — that's exactly why this tool runs every program on a real virtual calculator screen before you trust it, rather than just showing you text. Read the output, run it, and check it against your own understanding of the problem.

No warranty

Programs are generated and provided as-is, with no guarantee they are correct, complete, or fit for any particular purpose — including graded work. Always check a program's actual output against your own understanding of the problem before relying on it. We are not liable for any grade, outcome, or consequence that results from using a program this tool produced.

The manual bridge

The bring-your-own-Claude-chat bridge runs entirely between you and your own Claude account. We never see, store, or transmit anything you paste into or out of that flow — see the privacy notice for the full detail.

Accounts and billing

There is no billing in this version, and nothing in the app charges you. Prices shown on the site are the prices that will apply when billing goes live; they may change before then.

Trademarks

E-Code is an independent product and is not affiliated with, sponsored by or endorsed by Texas Instruments. TI-84 Plus, TI-84 Plus CE, TI-89 Titanium and TI Connect are trademarks of Texas Instruments Incorporated and are used only to identify the calculators this software works with. Claude is a trademark of Anthropic, PBC.

Changes

We may update these terms as the product changes. Continuing to use the app after a change means you accept the update.


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