Legal

Privacy Policy

Last updated: 28 June 2026

TalkToLaTeX turns spoken mathematics into LaTeX. This policy explains what we collect, how your voice is processed, who processes it, and the choices you have. We've kept it specific and plain. No boilerplate that hides what actually happens to your audio.

1. Who we are

TalkToLaTeX ("we", "us") provides a desktop app, a browser extension, and a website that convert dictated speech into LaTeX. For privacy questions you can reach us at privacy@talktolatex.com.

2. Information we collect

  • Account information: your email address and a securely hashed password (we never store your password in plain text). If you sign in with Google, we receive your verified email and a Google account identifier instead of a password.
  • Voice and dictation content: the audio you record while dictating, the transcript produced from it, and the LaTeX generated from that transcript. How long these exist is described in section 4.
  • Usage data: counts of conversions, which speed/quality tier was used, and timestamps, so we can meter usage and keep the service running.
  • Technical data: your IP address (used transiently for rate-limiting and abuse prevention), and a sign-in token plus minimal preferences stored in your browser's local storage. The "try it out" demo also uses Cloudflare Turnstile to tell humans from bots.

3. How we use your information

  • To provide the core service: transcribe your speech and convert it to LaTeX.
  • To create and secure your account, and to sync your dictation history across devices if you are signed in.
  • To meter usage, enforce rate limits and our spending cap, and prevent abuse.
  • To send essential account emails (for example, email verification and password resets).

We do not sell your personal information, and we do not use your voice or transcripts to advertise to you.

4. Voice data & AI processing

This is the part that matters most, so here is exactly what happens when you dictate:

  • Audio is captured only while you actively hold the key or button. Nothing is recorded in the background.
  • The audio is sent over an encrypted (TLS) connection to our backend, which forwards it to OpenAI for speech-to-text transcription. The resulting transcript is then sent to Anthropic (Claude) to produce the LaTeX, which is returned to you.
  • We do not store your audio. On the desktop app it is held only in memory for the moment it takes to transcribe. On the website demo it is processed in transit and discarded. We do not retain the audio or the transcript after the response is returned.
  • OpenAI and Anthropic process this data as our service providers under their API terms. Under those terms, your audio and transcripts are not used to train their models, and they retain such data only transiently for operational and abuse-monitoring purposes before deletion.
  • The website demo additionally keeps an anonymous per-IP counter (just a number of free tries used that day) so we can enforce the daily limit. It is not linked to your identity and expires automatically.

5. Storage and retention

  • Dictation history. The desktop app stores your dictation history locally on your own device. If account-based cloud sync is enabled, your history is also stored in our systems so it is available across your devices; you can clear it at any time.
  • Account data is retained for as long as your account exists. When you delete your account from within the app, we delete your account record and associated stored history.
  • Operational data such as usage counters and abuse-prevention records is kept only as long as needed for those purposes and then expires.

6. Third-party processors

We rely on a small set of providers to run the service. They process data on our behalf:

  • OpenAI: speech-to-text transcription.
  • Anthropic: converting transcripts into LaTeX.
  • Cloudflare: hosting, network security, and the Turnstile human-verification on the demo.
  • Resend: sending essential account emails.
  • Google: only if you choose "Continue with Google" to sign in.

7. Cookies and local storage

We do not use advertising or tracking cookies. We use your browser's local storage to keep you signed in and to remember basic preferences, and Cloudflare Turnstile may set a token to verify you are human on the demo. Clearing your browser storage will sign you out.

8. Security

Connections use TLS encryption. Passwords are salted and hashed; API keys for OpenAI and Anthropic are held only on our backend and are never exposed to the app or the browser. No system is perfectly secure, but we design to keep your credentials and content protected.

9. Your rights

You can access the email on your account, delete your account and stored history from within the app, and contact us to ask what we hold about you. Depending on where you live (for example, under the GDPR), you may also have rights to access, correct, export, or erase your personal data. Email us to exercise them.

10. Children

TalkToLaTeX is not directed to children under 13 (or the minimum age in your country), and we do not knowingly collect their personal information.

11. Changes to this policy

We may update this policy as the product evolves. We will revise the "last updated" date above, and significant changes will be highlighted in the app or on this page.

12. Contact

Questions about privacy? Email privacy@talktolatex.com.

Note: TalkToLaTeX is in active beta. This policy describes our current practices in good faith; it is provided for transparency and is not legal advice. If you operate this service, have it reviewed by a qualified professional for your jurisdiction.