Privacy Policy

The short version

• You sign in with an email address. Only the content you choose to check is sent, and only when you start a check.
• Content you check is sent to the LitmusAI service, which forwards it to the AI providers below to return the result. We do not sell it or use it for anything else.
• Your check history stays on your device and can be cleared at any time.

What is stored on your device?

Saved in your browser only, using local extension storage:

• A sign-in token that keeps you logged in.
• Settings such as model choice, sensitivity, and language.
• Check history, meaning the claims, verdicts, and uploaded files you have checked, so you can review them.

If you remove a file you have already checked, its content may be kept on your device (capped to a small number of files) so History can still answer follow-up questions about it later. It is never sent anywhere on its own, only when you ask a new question about that file.

You can clear history and remove files from inside the extension at any time. Uninstalling the extension removes all of this local data.

What is sent, and to whom?

On the Free plan, content is sent to the LitmusAI service, which forwards it to Google Gemini to produce the result. On Pro and Max, checks run on the API key you add in the extension, so your content is sent directly from your browser to the provider you chose, not through the LitmusAI service. Either way, this only happens when you start a check.

LitmusAI serviceRequired

• What is sent: your email (at sign-in). On the Free plan only, also the content you check: text you select or scan, transcripts of tab audio, the contents of files you upload, and comments you paste for sentiment analysis.
• Why: to authenticate you, apply your plan's feature access, and, on Free, run the check by forwarding the content to Google Gemini. Content is used only to return your result, not sold, and not used to train models.
• Your IP address is recorded once, at the moment your account is created, purely for fraud/abuse prevention (spotting free-trial abuse). It is not used to track your activity, not linked to your checks, and not shared with anyone.

Your chosen AI providerRequired

• What is sent: on Free, the content of your check, forwarded by the LitmusAI service to Google Gemini. On Pro or Max, the content of your check, sent directly from your browser to whichever provider you added a key for: Anthropic, OpenAI, Google Gemini, or Perplexity.
• Why: to check claims, verify them with web search, analyze sentiment, and assess AI origin.
• Governed by that provider's own privacy policy: Anthropic, OpenAI, Google, or Perplexity.

Deepgram (speech to text)Live audio only

• What is sent: audio captured from the browser tab you choose to listen to, on the Max plan.
• Why: to transcribe spoken audio so it can be checked.
• Endpoint: api.deepgram.com. Governed by Deepgram's privacy policy.

Stripe (payments)Paid plans only

• What is sent: for Pro or Max, your payment details are handled by Stripe. We never see or store card numbers.
• Endpoint: Stripe. Governed by Stripe's privacy policy.

Your API keys

• Keys you add for Pro or Max are stored only in your browser's local extension storage, never sent to the LitmusAI service, and used only to call that provider's API directly from your browser.

What we don't do

• We do not sell your content, and we do not share it with anyone other than the providers above needed to run the service.

Permissions and why they are needed

• storage: save your sign-in token, settings, and history locally.
• tabs and scripting: know which tab is active, and read page or selected text into that tab only when you click to scan, enable highlight to check, or use the right-click action. The extension has no standing access to any website's content.
• tabCapture and offscreen: capture the audio of a tab you choose, for live checking (Max plan).
• contextMenus: add the right-click "Fact-check selection" action.
• sidePanel: show the interface in a docked side panel.
• Host access (requested only when needed): not granted when you install the extension. The first time you click Scan or start live audio on a tab, Chrome asks you to allow LitmusAI to read that site, so checks can send to the LitmusAI service on the Free plan, or directly to your chosen AI provider on Pro and Max, even after you switch tabs with the side panel docked open. If you decline, Scan and Listen simply don't run.

Data retention, children, and changes

Retention

• Your check history stays on your device until you clear it or uninstall.
• The LitmusAI service keeps your account (email and plan status) while your account exists.
• It does not retain the content of your checks beyond what is needed to return the result.
• Content sent to Anthropic, OpenAI, Google, Perplexity, Deepgram, and Stripe is handled under their own policies.

Children

• The extension is not directed to children under 13.

Changes

• This policy may be updated, and the date at the top reflects the latest version.