Privacy Policy
This page is maintained by Twice on Sunday to describe how we handle your data.
Effective date: July 5, 2026
This Privacy Policy describes what information Twice on Sunday collects, how we use it, and the choices you have. By using the Service, you agree to the collection and use of information in accordance with this policy.
Information we collect
Account information: If you create an account, we collect your email address and a unique user identifier provided by our authentication service. We use this to identify you, secure your account, and sync your projects across devices.
Project data: When you use the Service, you upload garment photos, enter swatch gauge and body measurements, and generate charts, patterns, and export files. This data is stored so you can return to your projects and download your exports.
Guest usage: If you use the Service without an account, your projects are stored locally in your browser. We do not receive or store that project data on our servers.
Technical data: We may collect standard technical information such as browser type, device type, and error logs to help keep the Service running and secure.
How we use your information
We use your information to provide and improve the Service, to authenticate you, to store and sync your projects, to respond to your requests, and to fix bugs and outages.
We do not sell your personal information or project content to third parties. We do not use your uploaded garment photos for training machine-learning models without your explicit consent.
Data storage and security
Account data and cloud projects are stored through our backend service provider. We use industry-standard access controls and encrypted connections. No storage or transmission method is completely secure, and we cannot guarantee absolute security.
Third-party services
The Service uses trusted providers for authentication, cloud storage, and hosting. These providers process data only on our behalf and are contractually bound to use it solely to provide their services.
Cookies and analytics
The Service uses essential cookies and local storage to keep you signed in and to store guest projects. We may use basic analytics to understand how the Service is used. You can disable non-essential cookies through your browser settings.
Your rights and choices
You can access, update, or delete your projects by signing into your account. You can also delete your account by contacting us. If you have questions about your data or want to exercise your rights, reach out to us at the address below.
Changes to this policy
We may update this Privacy Policy from time to time. We will post the new version on this page with an updated effective date. Continued use of the Service after changes means you accept the revised policy.
Contact us
For privacy questions or requests, contact us at info@twiceonsunday.io.