Privacy Policy

lemmatools does not collect personal data. All calculations run in your browser. We do not require you to create an account, provide your name, email, or phone number to use any tool.

Analytics: We measure aggregate, anonymised page views and tool usage to improve the product. This analytics is cookie-free and does not track you across sites or collect personal information.

Advertising: We may display ads. Advertising partners can use cookies to show personalised ads based on your browsing history. You can opt out via your browser settings or by using a browser with ad-tracking protection.

AI explanations: When you choose to generate an AI explanation, a short summary of your calculation inputs and results is sent to a third-party AI service to produce the response. This summary does not include your name or any personally identifying information, and the response is cached only in your browser for the current session.

• Names, emails, or phone numbers
• Account credentials (no accounts exist)
• Calculator inputs, except the brief summary sent for an AI explanation — and only when you request one
• Payment information of any kind
• Location beyond approximate, country-level information derived from your IP address

lemmatools itself does not set first-party cookies. Advertising partners may set third-party cookies for ad personalisation. You can disable these in your browser settings or by using an ad blocker.

We use sessionStorage (not cookies) to cache AI explanation responses for the duration of your browser session. This data never leaves your device.

To operate the site we rely on reputable third-party providers for hosting and content delivery, anonymous analytics, advertising, currency data, and optional AI-generated explanations. Each of these providers processes data under its own privacy policy.

Since we do not collect personal data, there is nothing to retain or delete. Your sessionStorage cache is automatically cleared when you close your browser tab.

lemmatools is not directed at children under 13. We do not knowingly collect any information from children.

We may update this policy if we add features that change data practices. The "last updated" date above will reflect any changes. Continued use of lemmatools after changes constitutes acceptance.