Diesi Terms of Service

1. About These Terms

These terms describe the use of the Diesi application and its related educational services, including access to lessons, learning materials, and communication between students, teachers, and school administrators.

Questions about these terms can be sent to support@app.diesi.edu.gr.

2. Your Account

• Provide accurate account information and keep it up to date.
• Keep your sign-in credentials private and do not share your account.
• Report suspected unauthorized account access to support.
• Use only the lessons and materials made available to your account.

If you are a minor, a parent or legal guardian should review these terms with you and provide permission where required by applicable law.

3. Acceptable Use

When using Diesi, you must not:

• Harass others or upload unlawful, abusive, or infringing content.
• Access another person's account or personal information without authorization.
• Bypass access controls, distribute malware, or disrupt the service.
• Redistribute restricted lesson content without permission from its rights holder.

4. Educational Materials and Your Content

Educational materials remain the property of their respective rights holders. Access to a lesson does not transfer ownership of its materials. You may use materials for your authorized learning or teaching activities, subject to permissions provided by the rights holder and applicable law.

You retain ownership of content you submit. Submit only content you have the right to share. You permit Diesi to store and display that content to the intended users as needed to provide the educational service.

5. School Arrangements

Course enrollment, tuition, lesson scheduling, cancellations, and refunds are subject to the arrangements communicated by your school. These terms do not introduce a subscription or replace your enrollment agreement. Contact your school about those arrangements.

6. Privacy and Account Deletion

Information about personal data is available in the Privacy Policy.

To request deletion of your account and personal data, follow the data deletion instructions. Deleting an app account does not by itself cancel a separate school enrollment.

7. Availability and Access Restrictions

Access may be interrupted by maintenance or technical issues. Contact support if you cannot access a lesson or material available to your account.

Access may be restricted where reasonably necessary to address misuse, protect accounts, or comply with legal obligations. Any restriction should be proportionate to the issue. Where possible, you will receive an explanation and an opportunity to resolve it. You may contact support to request a review.

8. Your Legal Rights

Nothing in these terms excludes liability that cannot lawfully be excluded, or limits mandatory consumer rights and remedies under applicable law.

9. Changes to These Terms

These terms may need updates to reflect changes to the service or legal requirements. Material changes will be communicated before they take effect, with any notice or agreement required by applicable law. Changes will not remove rights that have already arisen.

10. Contact

For questions or concerns, email support@app.diesi.edu.gr.