Privacy Policy
Last updated: August 28, 2026.
This policy explains, without hedging, what data TudoCalc handles, why, who it is shared with and what you can demand about it. It covers tudocalc.com.br in both language versions (English and Portuguese).
The short version
- The numbers you type never leave your device. Every calculation runs in your browser; nothing is sent to a server of ours.
- The site shows Google AdSense ads, which use cookies and browser identifiers.
- You choose between personalised and non-personalised ads in the notice shown on your first visit — and you can change your mind later.
Who is responsible
TudoCalc is run by Rafael Rossi, an individual based in Brazil. For anything related to personal data — including access, correction or deletion requests — write to rafaelrossi.apps@gmail.com. We reply within 15 days.
The calculations: what happens to your numbers
TudoCalc is a static site. Each calculator is a small program your browser downloads and runs locally. Salary, weight, debt, dates, test results — none of it travels over the network or is written to any server. We could not see what you calculated even if we wanted to.
One exception stays on your own device: for convenience, each calculator keeps your
last 5 results in the browser's localStorage, under a key like
tc-hist-<calculator>. That data is never transmitted, and the Clear button in
the calculator's own history erases it immediately. Clearing site data in your browser does the same.
What we store in your browser
| Key | Purpose | Cleared when |
|---|---|---|
tc-theme | remembers whether you chose the light or dark theme | you clear site data |
tc-lang | remembers the language you picked in the switcher | you clear site data |
tc-consent | remembers your choice about personalised ads | you clear site data |
tc-hist-* | local history of recent results per calculator | you click Clear, or clear site data |
None of these keys identify you, and none are read by us — they exist so the site behaves the way you left it.
Cookies and advertising (Google AdSense)
This site displays ads served by Google AdSense. What you should know:
- Google and its partners, as third-party vendors, use cookies and device identifiers to serve and measure ads based on your visits to this and other sites.
- Google's advertising cookie (the DoubleClick/DART cookie) enables ads based on your browsing history.
- You can turn off personalised advertising at any time at adssettings.google.com, and review other vendors' options at optout.aboutads.info.
- Google's own account of how it handles this data is in "How Google uses information from sites that use our services".
Your choice applies from the start. Until you accept in the cookie notice, the site asks Google to serve non-personalised ads only — that is, without using your history for targeting. If you pick "Essential only", that setting stays. To change it later, use the "Cookie settings" link in the footer of any page; it reopens the notice.
Our advertising policy is deliberately restrained: no pop-ups, no full-screen interstitials, no autoplay sound, and no block that pushes the content around while you read.
Hosting and access logs
The site is hosted on Cloudflare Pages. Like any web server, Cloudflare's infrastructure records technical connection data (IP address, browser type, page requested, date and time) to deliver pages, apply security and prevent abuse. Those logs are handled by Cloudflare under its own privacy policy; we do not access them individually or cross-reference them with anything else.
TudoCalc does not use Google Analytics or any other audience-measurement tool of its own. The aggregate data we look at comes from Google Search Console, which reports search terms and clicks at site level — never at person level.
International transfers
Google and Cloudflare operate servers outside Brazil. When you use the site, the technical data described above may be processed abroad by vendors that maintain contractual data-protection safeguards.
Legal basis
- Consent — personalised advertising. That is what the notice is for.
- Legitimate interest — technical logs for security and page delivery, and non-personalised ads that keep the site free.
Your rights
You may at any time request: confirmation that processing takes place; access to the data; correction of incomplete or outdated data; anonymisation, blocking or deletion; portability; information about who we share data with; and withdrawal of consent. Write to rafaelrossi.apps@gmail.com. In practice, since we keep no accounts and no user database, most of these requests are resolved by clearing site data in your browser — and we will walk you through it if you would rather we confirmed.
Children
TudoCalc is not directed at children under 13 and does not knowingly collect data from them. If you are a parent or guardian and believe this has happened, write to us and we will fix it.
Links to other sites
Some pages link to official sources and to our partner site MoneyMojis. Once you leave, the destination's privacy policy governs — we have no control over what those sites collect.
Changes to this policy
This policy changes when the site does. Meaningful changes are reflected in the update date at the top of this page. It is worth revisiting from time to time.