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MasterMath

Privacy policy

Last updated: 16 August 2026

The essentials, in one sentence

What you type into the calculators never leaves your browser. It is not sent to any server, not stored and not shared with anyone.

Who processes your data

The controller of this site and of the processing described here is TINtÚ, online calculation tools and training, established in the Dominican Republic, postcode 25002.

For anything relating to this policy, or to exercise your rights, write to contacto@mastermath.top.

How the calculators work

Every calculation runs locally, on your device, in JavaScript. Your salary, your mortgage payment, your weight or the date of your last period are processed on the page itself and disappear the moment you close it. There is no database of user results, because there is nothing to send.

What is stored on your device

The site uses your browser's local storage for two things, both technical:

  • Your country, if you pick it in the selector, so it does not have to ask again and can show the right currency and number format.
  • Your cookie decision, so the banner does not reappear on every visit.

That information stays in your browser. You can delete it at any time from your browser settings, and the site will keep working.

Country detection

To show you the values for your country, the site reads the time zone configured on your system. That is read in the browser and transmitted nowhere. Your IP address is not used to geolocate you, and no external location service is involved.

Advertising: Google AdSense

This site is funded by advertising from Google AdSense. It is the only third-party service used, and it only loads after you accept cookies: until you do, no external script is downloaded and no data is sent to Google.

  • Google, as a third-party vendor, uses cookies to serve ads on this site.
  • Google's advertising cookie enables Google and its partners to serve ads based on your visits to this and other sites on the internet.
  • You can opt out of personalised advertising in Google's ad settings.
  • You can also opt out of third-party vendors' use of cookies at www.aboutads.info/choices or, if you are in Europe, at youronlinechoices.com.

How Google handles data from sites that use its services is set out in its partner sites policy. Note that Google may process that data outside the European Economic Area, relying on the international transfer mechanisms provided for in the applicable law.

You can change your decision whenever you like from the “Cookie preferences” link in the footer. If you withdraw consent, the ads stop loading and the site carries on working exactly the same.

Audience measurement

This site uses Google Analytics 4 to find out which calculators get used and which do not. Page views, country, language and device type are measured, always in aggregate: no individual profiles are built and that information is not combined with any other data. Google acts as a processor and may transfer data outside the European Economic Area under the European Commission's standard contractual clauses.

Measurement is subject to your consent through Google Consent Mode. In the European Economic Area, the United Kingdom and Switzerland no measurement cookie is set until you accept it; if you decline, Google receives only aggregate data with no identifiers. In other countries measurement is on by default, as their law permits, and you can switch it off at any time from cookie preferences.

You can block measurement in any browser by installing the Google Analytics opt-out add-on.

Server logs

For technical and security reasons the hosting provider records data such as the IP address, the date and time of access and the browser used. This processing is necessary to provide the service and is retained for a limited time.

Your rights

You can exercise your rights of access, rectification, erasure, objection, restriction and portability by writing to contacto@mastermath.top or through the contact page. Bear in mind that, since no identifying user data is collected, in most cases there will be no personal information to provide or delete.

You may also lodge a complaint with the competent data protection supervisory authority in your country.

Applicable law

The owner is established in the Dominican Republic, and this processing is subject to Law No. 172-13 on the Protection of Personal Data.

Because the site also addresses visitors in the European Economic Area, the safeguards required by the European Union's General Data Protection Regulation have been adopted: prior, express consent before any third-party script is loaded, the ability to withdraw it at any time as easily as it was given, and information about international data transfers. If you live in the European Union, you may complain to the supervisory authority in your country.

Children

The site is aimed at the general public and does not knowingly collect data from children. Using it requires no registration and no personal data.

Changes to this policy

Any change will be published on this same page along with its update date.