Privacy policy
Lunar Zenith is a set of free tools you can use without an account. We collect as little as we can, and this page explains what that means in practice.
Last updated: November 15, 2026
No account, no ads, no analytics
You do not need to sign up to use the site. We do not run advertising scripts or analytics scripts, and we do not build visitor profiles.
What you type into the tools
The tools run in your browser. Birth dates, times and places that you type into a tool are used for the calculation on your own device and are not sent to any server.
No third-party requests
Fonts, images and scripts are all served from this site itself. Our pages do not load anything from other companies’ servers.
What stays on your device
Your browser’s local storage keeps a few small items, on your device only, under names that start with “lz-”: your card of the day, a visit streak, your sign and the prompts you have closed.
So that pages load faster and still open offline, your browser may also keep a copy of the pages you have visited in its own cache on your device.
These items are not sent to us. You can remove them at any time by clearing this site’s data in your browser settings.
Server logs
Like any website, ours is hosted by a provider that keeps standard server logs: IP address, date and time, the page requested and the browser type. These logs are used to keep the site secure and are kept for a limited time.
Newsletter (only if you subscribe)
If you subscribe to the newsletter, we store your email address, the language list you chose and the record of your confirmation. Sign-up is double opt-in: your subscription only starts once you click the link in the confirmation email.
This data is kept on our own mail server in the European Union (Finland) and is used only to send you the newsletter. Every email contains an unsubscribe link.
Partner links
Some pages may link to partner services; these links are marked as such. If you visit a partner’s site, that site’s own privacy policy applies to your visit.
The feedback box
If you answer the short questionnaire at the bottom of a page, we store the options you ticked, your optional note, the page you were on and the site language. We do not store your IP address or any identifier with it, so please do not write personal details in the note.
Your rights
Under the GDPR and the UK GDPR you can ask for access to the personal data we hold about you, ask us to correct or delete it, and object to its use. You also have the right to lodge a complaint with a data protection supervisory authority.
Contact
Our contact details appear in the legal notice. Legal notice
This page is written in plain language on purpose and is updated whenever the site changes.