BullPrivacy Policy
Last updated: October 11, 2026
This Privacy Policy explains what information is collected when you visit bullcalc.xyz ("BullCalc", "we", "us") and how it is used. By using the site you agree to this policy.
1. Information you enter in calculators
All calculations run locally in your web browser. The numbers you type into our calculators are not sent to us and are not stored on our servers.
2. Information collected automatically
Like most websites, our hosting provider automatically records standard server log data such as your IP address, browser type, the pages you visit and the time of the request. These logs are used for security and to keep the site running, and are deleted after a limited time.
3. Cookies
Cookies are small text files stored on your device. BullCalc itself does not use cookies to track you. Our site may store short-lived data in your browser's session storage to cache price data for a few minutes. Third parties described below, mainly our advertising partners, may set cookies.
4. Advertising and Google AdSense
We use Google AdSense to show ads. In connection with this:
- Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites.
- Google's use of advertising cookies enables it and its partners to serve ads to you based on your visits to this site and/or other sites on the Internet.
- You can opt out of personalised advertising by visiting Google Ads Settings. You can also opt out of some third-party vendors' use of cookies for personalised advertising at www.aboutads.info.
- To learn how Google uses data when you use our site, see How Google uses information from sites or apps that use its services.
If you visit from the European Economic Area, the United Kingdom or Switzerland, we ask for your consent before personalised ads and related cookies are used, through a consent message provided by a Google-certified consent management platform. You can change your choice at any time using the privacy or cookie settings link shown by that message.
We also show clearly labelled sponsored placements. Clicking one takes you to a third-party website with its own privacy policy.
5. Third-party services
- Market data providers: some calculators load public data directly in your browser: prices and market caps from CoinGecko, historical prices from Binance public market data, and Bitcoin block and hashrate data from mempool.space. Your browser connects to these services, which receive your IP address. See their privacy policies.
- Google Fonts: fonts are loaded from Google's servers, which receive your IP address. See Google's privacy policy.
- Hosting: the site is hosted by a third-party web hosting company that processes server logs on our behalf.
6. Legal basis (GDPR)
For visitors in the EEA and UK, we rely on your consent for advertising cookies, and on our legitimate interest in running and securing the website for server logs.
7. Your rights
Depending on where you live, you may have the right to access, correct or delete personal data, to object to or restrict processing, and to withdraw consent at any time. Because we do not collect calculator inputs or create accounts, we hold very little personal data. To make a request, email contact@bullcalc.xyz.
California residents can opt out of the "sale" or "sharing" of personal information for targeted advertising using the Google Ads Settings link above or a browser signal such as Global Privacy Control where supported.
8. Children
BullCalc is not intended for children under 16, and we do not knowingly collect information from them.
9. Changes to this policy
We may update this policy from time to time. The date at the top shows when it was last changed.
10. Contact
Questions about this policy can be sent to contact@bullcalc.xyz.