1. No account required: Suguwari has no sign-up or login. The calculation features do not send personal information such as names or email addresses to the operator's servers. The contact form receives your optional name, optional reply email, and message only when you submit it.
  2. Calculation data stays on your device: The member names and amounts you enter are normally stored only within your device (browser). They are not sent to the operator's servers.
  3. Only when you use sharing: Only when you create a "share link" or a "link everyone can use" is that bill-splitting data stored on a server (Cloudflare) over an encrypted connection. It is kept for 90 days and then deleted automatically. Only people who know the link can view the contents.
  4. Analytics: To improve the site, we use anonymous, cookieless measurement (Cloudflare Web Analytics). No personally identifying information is collected.
  5. Sharing with third parties: We do not provide data to third parties except as required by law.
  6. Contact: Please reach us through the contact form. Your optional name, optional reply email, and message are used only to review the request, notify the operator, and reply. The server-side copy is deleted automatically after 30 days, and notification emails are kept only as long as needed to handle the request. We temporarily use your IP address for rate limiting against spam, but do not include it in the contact record or notification email. The rate-limit data is deleted automatically after one hour.