Privacy

Rheo stores the measurements and patterns in your account library so you can return to them. Drafting, cloth simulation, and PDF generation run in your browser. A private fitting service processes measurements to build your body preview.

Your account and library

Rheo stores your email address and the library data you save or sync, including people or labels, body measurements and characteristics, notes, blocks, garments, and saved versions. Use a label if you do not need to use a person’s name. Ask their permission before entering their information.

The application checks which account owns the library before reading or changing it. Rheo stores hashes of passwords, recovery codes, and session tokens. Keep your recovery code private and save it somewhere you can find it again.

Rheo uses your email address for sign-in, confirmation, password resets, account security notices, and a welcome message after a new account confirms its email. Our email delivery service processes the address and message to deliver those emails. Rheo does not include body measurements or pattern data in account emails.

Body fitting and hosting

Railway hosts the app, its PostgreSQL database, and the private fitting service. Rheo can use measurements and starting shape information to prepare an inferred mannequin as you work or after you save a measurement version. The database keeps temporary fitting requests and results with your account so Rheo can reuse a fit. An inferred mannequin and a simulated drape provide an approximate preview.

Railway and Cloudflare help operate the site and its addresses. Hosting and delivery services may process technical information such as IP addresses and request logs.

Sign-in and browser storage

Rheo uses a session cookie to keep you signed in. With “Keep me signed in” selected, a session can last up to 365 days. Otherwise the cookie lasts for the browser session and the server session expires after seven days. Signing out ends that session. Resetting a Rheo password ends earlier sessions for the account.

Account screens that display the Google button load Google’s sign-in software. Rheo sets a short-lived cookie to verify sign-in attempts. When you connect a Google account, Rheo stores its identifier, its link to your Rheo account, and the date it was connected. The sign-in flow does not give Google access to your library or Rheo access to your Gmail, Drive, or Calendar. Google Privacy Policy

Edits waiting to sync may exist only in your open tab. Older versions of Rheo may have stored work in browser storage. Importing that work leaves the original browser copy in place. You control the backup files and PDFs you download.

Retention and your choices

Saved account and library records have no automatic expiry. You can export your library as JSON and download your patterns as PDFs. Removing an item from your library takes effect once the change saves. Saved versions and patterns can still contain copies of earlier measurements.

Email support@rheopatterns.com to ask about your data or request access, correction, or account deletion.

Support correspondence

When you email support, Rheo receives your address, message, and anything you attach. Cloudflare forwards the message to the support inbox in Gmail. Rheo uses what you send to respond and investigate the issue.