Support

Questions, bug reports, and feedback

Contact us about calculation problems, display issues, accessibility, privacy questions, or ideas that improve the core comparison flow.

What to include

The device and browser you were using.
The measurements and units that produced the issue.
The steps needed to reproduce the problem.

Keep sensitive information out of email

Do not send passwords, payment details, government identifiers, medical records, or other sensitive personal information. A minimal reproduction is normally enough to investigate a chart issue.