Privacy Policy
A plain-language record of what Hoshikuzu does with visitor data. The short version: this site is designed to work without accounts, tracking profiles, or personal data collection.
What This Site Collects
Hoshikuzu does not ask you to create an account, enter personal details, or submit payment information.
The public pages are meant to be browsed quietly. The starfield, timers, calculators, and catalog pages can be used without sending personal information to Hoshikuzu.
Local Preferences
Some interface choices are stored in your browser so the site can remember how you left it. For example, the archive sheet and night atlas theme preference is saved locally on your device.
This local preference is not an account, is not shared with other visitors, and can be cleared through your browser storage settings.
Third-Party Destinations
Some records may link to external websites, project repositories, Discord, or product pages. When you leave Hoshikuzu, the destination site may receive ordinary browser information and apply its own privacy policy.
Hoshikuzu does not control those external services. Review their policies before sharing information with them.
Operational Data
Hosting providers, browsers, and security layers may process standard technical data such as request time, device type, or error details in order to deliver the site and keep it available.
Hoshikuzu does not use this project to build advertising profiles or sell visitor data.
Changes
If the site adds accounts, analytics, submissions, or other features that materially change how data is handled, this policy should be updated before those features become part of the normal experience.
The updated date below is the record to check when revisiting this page.