The short version
We do not collect personal information from anyone. No names, no emails (unless you write to us), no ages, no classroom IDs, no Blooket account data. There is no sign-up on this site and there never will be.
What follows is the slightly longer version, covering the incidental technical data that any website touches and the steps we take to minimize even that.
What we collect
When you visit any web page, your browser automatically sends our server small amounts of technical information. We treat this narrowly:
- Server logs. Every request records the URL you visited, the timestamp, your IP address, and your browser's user-agent string. Logs are kept for up to 30 days for operational troubleshooting (detecting outages, abusive traffic) and then automatically deleted.
- Calculator inputs. Nothing you type into a calculator on this site is sent to us or stored anywhere. The math runs in your browser and disappears the moment you close the tab.
- Cookies. A small number of essential cookies may be used to remember preferences like "prefer dark mode" if that feature is present. Third-party services we embed (such as advertising partners, see below) may set their own cookies, which are governed by those providers' own policies.
What we don't collect
- Your name, age, email, or school.
- Your Blooket account, username, or in-game balance.
- Location data beyond approximate country from your IP (used for nothing).
Third-party services
The site is hosted on a standard commercial web platform, which provides the server logs described above. The site may also embed third-party advertising partners to help keep the calculators free to use. Those partners may set their own cookies and collect limited technical data (such as IP address and user-agent) to serve and measure ads; their practices are governed by their own privacy policies. We do not share any personal information with them, because we do not collect any.
Children's privacy
Blooket is widely used by players under 13. This site is designed to be safe for everyone. Because we don't collect personal information from anyone, we don't collect it from children either. If you are a parent or guardian and believe we have somehow received data about a child, please contact us and we'll delete it.
We comply in spirit and practice with the U.S. Children's Online Privacy Protection Act (COPPA) and similar frameworks (GDPR-K in the EU). The simplest form of compliance is not collecting the data in the first place, which is the path we've chosen.
Your rights
Because we don't hold a database of personal information, there is typically nothing to request, correct, or delete. If you are curious whether we have anything tied to you specifically, email hello@blooketcalculator.us and we'll confirm in writing.
Security
The site is served over HTTPS. Server logs are stored on the hosting provider's standard infrastructure with industry-standard access controls. No system is perfectly secure, but because we hold so little data the practical risk of a meaningful breach is low.
Changes to this policy
If we change anything material, we'll update the "Last updated" date at the top of this page and, for significant changes, post a short notice on the homepage for a few weeks before they take effect.
Contact
Questions about this policy go to hello@blooketcalculator.us. Mail from the studio address in Austin, Texas, United States, is also read; see the contact page.