Privacy

What stays in your browser

Everything you create is kept in this browser’s local storage, on this device only:

• Your settings: display, Human timing, playback sound, and swap ping.
• Your roster: which characters you own or have wishlisted, and at what constellation.
• Weapon and artifact loadouts.
• Saved rotations and teams, and saved lineups.
• Open tabs in the rotation planner and the team builder, and their recently closed tabs.
• The visualizers’ layout.
• When you last downloaded a backup, so Settings can tell you.
• Whether critcalc has already asked your browser to keep its data.

critcalc sets no cookies. A backup file from Settings carries all of it. Reset saved data in the same place clears your roster, loadouts, saved rotations, and saved lineups but keeps your settings. To remove everything, clear this site’s data in your browser.

Browsers can clear a site’s storage on their own, for example after a while without a visit. The first time you save a rotation or lineup, critcalc asks your browser to keep this site’s data instead. Firefox shows you a prompt for this; other browsers decide by themselves. Settings shows what your browser answered.

What leaves it

Share links, when you send one

A share link carries what you’re sharing inside the link itself: a rotation’s notation with its constellations and loadouts, a lineup’s teams, or one instrument’s settings. Nothing about you is added, and nothing is sent anywhere until you paste the link somewhere.

Reports, when you send one

The feedback form is a Google Form. Report a problem opens it with some answers already filled in: which tool you were in, a share link to what you were looking at, critcalc’s build, and your browser’s user-agent string, plus the error message if something crashed. Those reach Google when the form opens, and become a report only if you submit it. Google’s privacy policy covers the form.

Visit counts

critcalc uses Cloudflare Web Analytics to count visits: which pages are viewed, the referring site, the browser and device type, and the country. Cloudflare says it uses no cookies or local storage for this and doesn’t record the query string, so the rotation inside a share link isn’t part of it. Its Web Analytics FAQ has the details.

The host

critcalc is served by Cloudflare Pages. Like any web host, Cloudflare handles each request, your IP address included, to deliver the page.

What critcalc doesn’t have

No accounts, no ads, no third-party scripts beyond the analytics above, and no fonts or images loaded from anywhere else. Links to other sites open in a new tab, and those sites’ own policies apply there.

Changes

If any of this changes, this page changes first.

Last updated October 26, 2026.