Privacy
Last updated November 11, 2026.
CareerOS measures how much time you spend studying on the websites you choose. This page explains what that involves, in plain language.
Who is responsible
CareerOS is run by Vinicius Benedito, the data controller under Brazil's General Data Protection Law (LGPD). For any privacy question or request, write to test@gmail.com.
What we collect and why
| Data | Why |
|---|---|
| Email, sign-in provider, account ids, name and avatar from Google or GitHub | Your account. Name and avatar come with the sign-in; CareerOS does not use them. |
| Sign-in records with IP address and browser, kept by Supabase | Keeping sign-in secure. CareerOS itself does not read them. |
| Web request logs with IP address, kept by Vercel | Running the dashboard; kept for a short time |
| Page views on this website: the page visited, the referring site, country, device and browser type, counted by Vercel Web Analytics without cookies | Knowing how many people visit the website and which pages they use |
| The sites you choose to track (e.g. leetcode.com) | Knowing where your study time counts |
| Study periods: tracked site, start and end time, a random device id | Your totals and charts — this is the product |
| In the extension, on your computer: its sign-in, settings, a random device id, your tracked-site list, today's study periods and periods waiting to upload | Staying connected and not losing time while offline |
Nothing else. The extension never records full addresses (paths or search terms), page titles or content, keystrokes, form data, passwords or screenshots, and never stores or sends the names of sites you have not chosen. It does not read pages at all, and it never tracks incognito windows.
The website (this page, the home page, sign-in and the dashboard) uses Vercel Web Analytics to count page views: which pages are visited, the referring site, the country, and the device and browser type. It sets no cookies and uses no personal identifiers. Sign-in callbacks and the extension connection page are not counted. On the sign-in page, dashboard and settings, web addresses are sent without their details (only the selected period and campaign tags are kept); the home page is counted as visited. The extension sends no analytics. There are no advertising scripts.
Legal basis
We process this data to provide the service you signed up for (LGPD, article 7, item V). Page-view counts serve our legitimate interest in knowing how the website is used (article 7, item IX).
Who processes it and where
- Supabase stores your account and study data, in the São Paulo, Brazil (sa-east-1) region.
- Vercel hosts the website and dashboard and counts page views (Web Analytics).
- Google and GitHub sign you in; they share your email and basic profile with CareerOS.
These providers may process data outside Brazil (international transfer), under their own safeguards. Your data is never sold or shared for marketing.
How long we keep it
Until you delete your account. Our own weekly backups are encrypted and kept for 90 days, so deleted data disappears from them within 90 days. Logs kept by Supabase and Vercel expire according to their own retention periods.
Your rights
- See your data: the dashboard shows your study time and tracked sites.
- Get a copy or correct it: write to test@gmail.com.
- Delete it: Settings → Delete account removes your account and all study data immediately. Disconnecting the extension clears your sign-in and study data from your computer.