Privacy Policy

Kastavo is operated with a commitment to collecting the minimum amount of data necessary to keep the site running and to continuously improve the tools it offers.

This policy may be updated as Kastavo evolves — for example, when new usage-analytics or advertising integrations are turned on. The most recent version will always be available on this page.

For the purposes of Brazil's Lei nº 13.709/2018 (LGPD — General Data Protection Law), this site is maintained and administered by Michel Davi, a natural person based in Betim, Minas Gerais, Brazil, who holds the position of data controller with respect to the personal data collected on this platform.

In keeping with the transparency principle (LGPD, art. 18), the official channel for data subjects to exercise their rights and ask questions about this Policy is contact@kastavo.com. Requests are handled within the timeframes set by applicable law; the controller reserves the right to take reasonable steps to verify a requester's identity, in order to protect data security and prevent unauthorized access.

Processing in Kastavo's tools happens entirely in your browser — the values you type are never sent to any Kastavo server to perform the calculation or conversion, and Kastavo does not store that content.

We automatically collect basic technical browsing data (such as browser type, device and pages visited) through standard infrastructure logs, used only to keep the site running securely and reliably.

Kastavo uses cookies and equivalent technologies to remember simple preferences, such as the language and the theme (light or dark) you've chosen.

Third-party cookies for audience analysis or advertising will only be used once the services described below are activated, and always in accordance with applicable data protection laws.

Kastavo uses Google Analytics (GA4) to understand, in aggregate, how the site is used and where we can improve the experience. This integration is active and collects data such as pages visited, browsing behavior, device type, and traffic source (for example, whether you arrived through a search engine or a direct link).

Google acts as a processor of this data on our behalf, handling it according to its own privacy policy. Kastavo does not use Google Analytics to identify you personally — data is analyzed in aggregate, solely to understand site traffic and improve the tools offered.

Kastavo may display ads through Google AdSense as part of its financial sustainability strategy. The AdSense integration described in this section can be present in the site's code and configuration without any ad actually appearing on the page you're looking at — in that case, no advertising cookie is set and no ad-related data is collected, exactly as if the integration weren't there at all.

Once ads are actually shown, Google AdSense may use cookies and similar technologies (such as device identifiers) to display ads that are relevant to you, including based on your browsing history on this site and others. Ads may be personalized or non-personalized depending on the consent choice described below.

Before any advertising cookie is used, visitors in the European Economic Area, the United Kingdom and Switzerland are shown a consent message (a Consent Management Platform, or CMP, operated by Google) where you can accept, decline, or customize consent for ads and analytics. Outside of those regions, applicable local rules and Google's own policies apply.

You can review or change your ad preferences at any time, either by reopening the consent message (where available) or through Google's own Ad Settings (adssettings.google.com), which lets you see and control how Google personalizes ads across its services.

In addition to cookies, Kastavo may use your browser's local storage (localStorage) to save preferences such as theme and language directly on your device, without sending that information to any server.

You can clear this data at any time through your browser's settings.

Kastavo does not sell personal data. Data may be shared with service providers strictly necessary to operate the site (such as hosting providers), with Google Analytics, which is already active, and, whenever ads are shown, with Google AdSense, under the terms described above.

If you are in Brazil, your data is handled in accordance with the Lei Geral de Proteção de Dados (LGPD). If you are in the European Union, the rights set out in the General Data Protection Regulation (GDPR) apply.

In both cases, you have the right to: confirm whether your data is being processed; access the data we hold about you; correct incomplete or outdated data; request deletion of your personal data; and object to certain kinds of data processing.

To exercise any of these rights, contact us using the email listed in the "Contact" section below.

Technical browsing data is kept only for as long as necessary for the site's security and stability. Preferences saved locally (theme and language) remain on your device until you clear them.

We may update this Privacy Policy periodically to reflect changes in how Kastavo works or in applicable law. We recommend revisiting this page from time to time.

Questions about this policy can be sent to contact@kastavo.com, the same address listed on the Contact page.