Privacy Policy

Last updated: 20 October 2026

1. About Canvas For Tutors

Canvas For Tutors is an online collaborative whiteboard for tutors, teachers and students, operated by Greenfield Physics. This policy explains how personal information is collected, used, stored and shared when you access our website, web application or Android application.

2. Information we collect

We may process your email address, account identifiers, authentication information, board titles, lesson content, uploaded files, images, sharing settings, support enquiries and student information voluntarily entered into the platform. Technical information may include device and browser details, IP addresses, security logs and usage information needed to operate and protect the service.

3. Accounts and authentication

We use Supabase for authentication, database services and cloud storage. Account information enables secure sign-in, saved-board access and appropriate permissions. Authentication and related technical records may be processed by Supabase to provide these services.

4. Whiteboards and uploaded content

Canvas For Tutors stores content you create or upload, which may include drawings, text, PDF documents, equations, diagrams and images. Content is processed to save, retrieve, display, export and share your teaching materials. Users should avoid uploading unnecessary personal or sensitive information.

5. Student collaboration

Tutors may share whiteboards through access links. Anyone possessing a valid link may be able to view or edit the associated board, subject to the applicable permissions. Tutors are responsible for sharing links appropriately and protecting student privacy.

6. Subscriptions and payments

We use Stripe to manage subscription billing and payment processing. Stripe may process payment details, billing information and transaction records under its own privacy policy. Canvas For Tutors may receive subscription status, customer identifiers and payment-related records necessary to manage access and provide support.

7. Hosting and service providers

We use Vercel for website and application hosting, Supabase for authentication and data services, and Stripe for payment processing. These providers may process information necessary to deliver their respective services. We may also use technical monitoring or analytics services where implemented and appropriately disclosed.

8. How information is used

We use information to operate the platform, authenticate accounts, manage subscriptions, save and share boards, enable collaboration, respond to support requests, maintain security, investigate technical problems, improve reliability and comply with legal obligations.

9. Data sharing

We do not sell personal information. Data may be shared with the service providers identified above where necessary to operate Canvas For Tutors, with collaborators where users deliberately share content, or where disclosure is legally required.

10. Data security

We use reasonable technical and organisational safeguards to protect information, including access controls and secure connections where supported by our infrastructure. No online system can guarantee absolute security.

11. Data retention

Account and whiteboard information is generally retained while needed to provide the service. Following an account-deletion request, we review and delete eligible information, subject to applicable legal, billing, security and backup-retention requirements. Certain transaction records may need to be retained for accounting or legal purposes.

12. Account and data deletion

To request deletion of your Canvas For Tutors account and associated personal data, email support@canvasfortutors.com with the subject "Account Deletion Request". Please use the email address associated with your account so that we can verify your request. You may also request deletion of particular information or ask what personal data we hold. We will respond and process eligible requests in accordance with applicable law.

13. Children and students

Canvas For Tutors is designed primarily for educators. It may be used in teaching sessions involving students, including minors. Educators and organisations must ensure that they have the necessary permissions and lawful basis to share student information. Students should not disclose unnecessary personal information in shared boards.

14. Your privacy rights

Depending on your location, you may have rights to request access, correction or deletion of personal information, or to object to or restrict certain processing. Contact us to exercise applicable rights.

15. International processing

Our service providers may process or store information in countries outside your own. Where applicable, international transfers are subject to relevant legal requirements and safeguards.

16. Changes to this policy

We may update this policy as Canvas For Tutors develops. The current version and its revision date will appear on this page.

17. Contact

For privacy questions, data requests or account-deletion enquiries, contact support@canvasfortutors.com. You can also visit our support page.