Privacy Policy
Last updated November 13, 2026 · NoiMath
This policy explains what happens to information when you use NoiMath. The short version: the calculators run in your browser, there is no account and no email capture, and the only third-party data processing comes from advertising and aggregate traffic measurement.
Who is responsible
NoiMath is an independent website. For privacy questions, or to exercise any right described below, email hello@noimath.com. That address reaches the site operator.
What we collect directly
Nothing that identifies you. No account is required, there is no newsletter, and there is no contact form that stores submissions.
- Calculator inputs. The numbers you type are processed in your browser. They are written into the page URL so a calculation can be bookmarked or shared, and they are never transmitted to our servers.
- Email. If you email us, we receive your address and whatever you write. That correspondence is kept only as long as needed to answer, and is not added to a marketing list.
- Server logs. The hosting provider may record standard request data — IP address, user agent, requested URL, timestamp — for security and abuse prevention. These logs are not used to build a profile of you.
Cookies and advertising
The site is supported by display advertising. When advertising is active, third-party vendors, including Google, may use cookies or similar technologies to serve ads based on your prior visits to this and other websites.
- Google's use of advertising cookies enables it and its partners to serve ads based on your visits to this site and/or other sites on the internet.
- You can opt out of personalised advertising at Google Ads Settings.
- You can opt out of third-party vendor cookies at aboutads.info, and review Google's practices at How Google uses information from sites that use its services.
Visitors in the EEA and the UK are shown a consent banner provided by a Google-certified consent management platform. Personalised advertising cookies are not set before consent, and consent can be withdrawn at any time through the same banner.
The site may also use cookie-free, aggregate traffic measurement (for example, a privacy-focused analytics service) to understand which calculators are useful. That measurement does not build an individual profile and is not sold or shared.
Legal bases (EEA and UK)
Where the GDPR applies, the legal bases are: consent for personalised advertising and any non-essential cookies; legitimate interests for security, abuse prevention and aggregate measurement; and, for correspondence, the legitimate interest in answering you.
Who we share with
We do not sell personal data. Data is processed by the service providers needed to run the site:
- Hosting and content delivery — serves the pages and keeps security logs.
- Advertising — Google AdSense and its partners, when advertising is active.
- Email — the provider that receives and stores messages sent to the contact address.
Some of these providers process data outside your country. Where that happens, transfers rely on the providers' standard contractual clauses or an equivalent safeguard.
How long data is kept
Calculator inputs are never stored by us. Email correspondence is kept while the conversation is active and for a reasonable period afterwards, then deleted. Hosting logs follow the hosting provider's retention schedule. Advertising and measurement data are retained according to the third party's own policy.
Your rights under the GDPR
If you are in the EEA or the UK, you have the right to access the personal data held about you, to have it corrected or erased, to restrict or object to processing, to data portability, and to withdraw consent at any time. You also have the right to lodge a complaint with your local data protection authority.
Your rights in California
Under the CCPA/CPRA, California residents have the right to know what personal information is collected, to request access to it, to request correction or deletion, to opt out of the sale or sharing of personal information, and not to be discriminated against for exercising those rights. This site does not sell personal information, and it does not share it for cross-context behavioural advertising except through the consent-gated advertising described above.
Do Not Track and Global Privacy Control
Browser-level opt-out signals are honoured where required by law and where the advertising platform supports them. The consent banner is the primary control for advertising cookies.
Children
This site is not directed at children under 13 and does not knowingly collect their data.
Exercising a right
Email hello@noimath.com with the right you want to exercise. Because the site holds no accounts, in most cases the only personal data we can locate is an email you sent us. We will respond within the period required by applicable law.
Changes
Material changes to this policy are reflected in the date at the top of the page. Continued use of the site after a change means the updated policy applies.