QuickTex Privacy Policy

Last updated: October 15, 2026

QuickTex is provided by Lyarah Educational Consultants LLC. Our website is Full Marks Education. Contact us about privacy or support at team@fullmarkseducation.com.

What QuickTex does

QuickTex is an add-on for Google Docs™ and Google Slides™ that helps you create, insert, edit, and arrange LaTeX equations. The base add-on supports both applications; the Chrome extension is an optional enhancement. This policy covers the add-on, optional extension, and QuickTex account and billing services. You connect your Google account and approve access before QuickTex reads or changes your files. Preview rendering happens locally in your browser. File operations use a QuickTex backend hosted on Google Apps Script and Google’s Docs and Slides services.

Information accessed and processed

The optional Chrome extension requests access to files you explicitly authorize through Google Picker. Each Docs or Slides add-on requests access only to the current document or presentation. The add-on’s account and billing integration requests Google identity, email, and external-request permissions to verify your account and access allowance. External requests send identity and access-check information to QuickTex’s website service outside Google Apps Script; they do not send equation source or document text to the billing service. Its workflows target the file where you open the composer and the destination chosen for that operation. It does not scan your browsing history or list your Drive files for advertising or profiling.

How information is used

We use this information to render previews, determine insertion locations, insert or replace equations, restore editable source, arrange selected slide objects, preserve drafts, detect stale editing destinations, avoid duplicate retries, verify subscription access, enforce the free document allowance, and troubleshoot failures. We do not use Google user data for advertising, sell it, or use it to train generalized AI or machine-learning models. QuickTex contains no advertising or third-party analytics integration.

How we protect your data

We use the following safeguards to protect sensitive Google user data, account information, and billing and usage records:

Storage and retention

Sharing and Google services

Content and identifiers needed for a requested operation are processed by QuickTex’s backend within Google’s infrastructure and Google’s Docs/Slides APIs. Requests use HTTPS. We do not send your equation or document content to an external math-rendering or AI service. Preview rendering runs in your browser; the optional extension packages its local rendering libraries.

QuickTex’s website service, hosted on Vercel, receives identity/session tokens, account and billing requests, and original file identifiers for access checks and usage confirmation. It checks identity and hashes file identifiers before database storage. Supabase provides account authentication and billing/usage storage. Stripe provides hosted checkout and subscription management. When creating a Stripe customer, we send your email and internal account identifier; checkout also includes the selected plan and account references. Stripe sends payment and subscription events to QuickTex to update access. We do not send file identifiers, equation source, or document text to Stripe, and do not store equation source or document text in the billing database.

We do not sell user data or share it with advertisers. We limit human access to service operation and troubleshooting; any additional access to your document content for support requires your explicit agreement. Information may also be disclosed when required by applicable law.

QuickTex follows the Google API Services User Data Policy and its Limited Use requirements when using or transferring Google API data.

Your choices and deletion

You can stop using QuickTex, uninstall the add-on or optional extension, and revoke QuickTex’s access in your Google account’s third-party connections. Revocation stops future authorized operations; it does not delete equations already inserted in your files. Remove equation objects or their source metadata in the file if you want to delete them. Google’s history and retention features may retain prior versions.

Removing the optional extension removes its local storage. Sign out of the website or clear its browser storage to remove the local website session. Temporary backend cache entries expire as described above. Uninstalling, signing out, revoking Google access, or cancelling a subscription does not delete your authentication, billing, or usage records. To stop future subscription renewals, use Manage subscription on the QuickTex account page.

To request deletion of your QuickTex account and associated identity/email, billing, and usage records, email team@fullmarkseducation.com from the account email address and state that you want QuickTex account deletion. We may ask you to verify account ownership. There is no self-service account-deletion button. We will explain the scope of deletion, including whether your website sign-in account also supports other Full Marks Education services, and any records that must remain for payment, legal, or dispute-resolution obligations. Deleting database records does not by itself cancel a Stripe subscription or erase Stripe payment records; subscription cancellation is handled separately.

Account deletion does not remove equations from your Google files, copies held by collaborators, Google version history, or records already held by service providers under their own retention rules. Remove file content through Google Docs or Slides and contact us with any questions about retained records. Do not send passwords, access tokens, or private document content in a deletion request.

Changes

We will update this policy when QuickTex’s data practices change and provide notice or request renewed consent where required.