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Legal

Terms of Service

Last updated: March 2026

The Sienna widget core is MIT licensed — free to use, modify, and distribute. These Terms govern use of the Sienna website, Pro/Agency licenses, and any paid services.

1. Use of the Free Widget

The Sienna Accessibility Widget is released under the MIT License. You may use it on any website, commercial or otherwise, without restriction, attribution, or payment. The only limitation is that you may not remove the digital signature verification system.

2. Pro & Agency Licenses

Paid licenses (Pro, Agency) are issued per-domain and are non-transferable. A Pro license grants lifetime access to the unlocked features for one domain. Agency licenses are subscription-based and billed monthly. Licenses may not be resold or redistributed.

3. Accessibility Compliance Disclaimer

Sienna addresses the visual/UI layer of accessibility standards including portions of WCAG 2.1, ADA, and Section 508. Use of Sienna does not guarantee full compliance with any accessibility regulation. Complete compliance requires structural code changes (semantic HTML, ARIA labels, keyboard logic) that are beyond the scope of any overlay widget.

The compliance articles on this website are educational resources explaining each standard. They are not legal advice.

4. No Warranty

The widget is provided "as is" without warranty of any kind, express or implied. We make no guarantees that deploying Sienna will satisfy any specific legal accessibility requirement in your jurisdiction.

5. Limitation of Liability

To the maximum extent permitted by law, Sienna and its developer shall not be liable for any indirect, incidental, or consequential damages arising from your use of the widget or services. Our total liability shall not exceed the amount you paid for any license in the 12 months preceding the claim.

6. Changes to These Terms

We may update these terms occasionally. Continued use of the widget or paid services after changes constitutes acceptance of the new terms.

7. Contact

Questions? Contact us.