Demo. This is a working prototype shown for evaluation. It is not a live public service and nothing here is medical advice. More

Cookies, all one of them.

Last updated 16 September 2026. Most cookie pages exist because a site tracks you. This one exists because the law says we should tell you what we set, and it's a short list.

The short version

  • We set one cookie, and only after you sign in. It keeps you signed in.
  • No analytics, no advertising, no social buttons, no third-party scripts, so no consent banner is needed.
  • Signing out or deleting your account removes it.

What we set

CookieWhat it doesLastsType
cs.session_token (shown as __Secure-cs.session_token in your browser)Proves it's you on this phone after you've entered the code we texted. Marked HttpOnly and Secure so scripts and other sites can't read it.14 days, refreshed once a day while you use the app. Gone when you sign out.Strictly necessary

"Strictly necessary" is the legal category (Privacy and Electronic Communications Regulations, regulation 6) for cookies a service can't work without. They don't need your consent, which is why you didn't see a banner. If we ever add a cookie that isn't strictly necessary, you'll be asked first.

What else the browser stores

If you install Clean Sheets to your home screen, your browser keeps a copy of the landing page, the blog and your own tick screen so they open offline. That's a cache, not a cookie, and it holds nothing about anyone else. Clearing site data in your browser removes it.

What we don't do

  • No Google Analytics, Meta Pixel, Hotjar or anything of that kind.
  • No advertising or retargeting cookies.
  • No embedded social media buttons or third-party fonts. Fonts are served from our own domain.
  • No fingerprinting.

Questions

Anything unclear, ask: admin@flexgroup.dev. The full picture of what we hold is on the privacy page.