Last updated: September 27, 2026
By using err.day, you agree to these terms.
The Storefront Accessibility Check is an automated scan that tests web pages against WCAG 2.1 AA criteria. It produces a report listing potential accessibility issues.
The legacy habit and nutrition tracker is available for existing accounts.
You retain ownership of the habits, check-ins, and nutrition entries you create. You grant us a license to store and process this content to provide the service. You can delete your content at any time.
You must be at least 13 years old to create an account. You are responsible for keeping your password secure and for all activity on your account.
Do not misuse the service. Do not attempt to access data that is not yours, disrupt the service, or use it for unlawful purposes.
err.day is provided "as is" without warranties of any kind, express or implied. We do not guarantee uptime, accuracy, or fitness for any particular purpose.
To the extent permitted by law, our liability is limited to the amount you have paid us in the past 12 months (which may be zero).
We may update these terms. Continued use of the service after changes constitutes acceptance of the new terms.
Questions about these terms? Email support@err.day.