Privacy Policy

1. Who We Are

Welcome to Seedance 2.0, an AI video generation platform focused primarily on the Seedance 2.0 model and designed to help you produce exceptional videos with advanced artificial intelligence technology. Through duckmath-classroom.com, users can generate high-quality cinematic videos with smoother motion, stronger multi-shot consistency, and production-ready output.

Your privacy matters greatly to us at Seedance 2.0. This Privacy Policy explains how we collect, use, and protect your personal information when you use our platform and related services.

Disclaimer: This website is not affiliated with, endorsed by, or sponsored by ByteDance or the official Seedance team. It is an independent third-party tool built on the Seedance API.

2. Information Collection and Use

This policy applies to all users of the DuckMath Classroom platform, including visitors to our website, registered users, and customers who purchase credits or subscriptions.

This policy does not apply to third-party services or websites that we link to. We encourage you to review the privacy policies of any third-party services you access through our platform.

3. Information We Collect

3.1 Personal Information

• Name and display name
• Email address
• Profile picture (if provided)
• Authentication tokens and session identifiers

3.2 Account and Usage Information

• Account registration date and activity
• Credit balance and transaction history
• Video generation requests and parameters
• Generated videos and associated metadata
• Uploaded images and reference materials

3.3 Payment Information

We work with third-party payment processors (Creem, Stripe) to handle all transactions. We do not store your full credit card or payment details. We may store limited transaction information such as the last 4 digits of your card, transaction dates, and amounts for accounting purposes.

3.4 Technical and Log Data

• IP address and approximate location
• Browser type, operating system, and device information
• Pages visited and time spent on our platform
• Referral sources and search terms
• Error logs and performance metrics

3.5 Cookies and Tracking Technologies

We use cookies and similar technologies to authenticate users, remember preferences, analyze usage patterns, and improve our services. You can manage cookie preferences through your browser settings.

4. How We Use Information

We use the collected information for the following purposes:

• Providing and maintaining our AI video generation services
• Processing and fulfilling video generation requests
• Managing user accounts and authentication
• Processing payments and subscriptions
• Communicating with users about service updates, promotions, and support
• Analyzing usage patterns to improve platform performance and features
• Preventing, detecting, and responding to fraud, abuse, and security incidents
• Complying with legal obligations and enforcing our terms of service
• Conducting analytics and research to enhance our AI models (with appropriate consent and anonymization)

5. Cookies and Similar Technologies

We use the following types of cookies:

• Essential Cookies: Required for basic functionality, such as authentication and security.
• Functional Cookies: Remember your preferences and settings.
• Analytics Cookies: Help us understand how you use our platform.
• Marketing Cookies: Used to deliver relevant content and advertisements (if applicable).

Most web browsers allow you to control cookies through their settings. Disabling certain cookies may affect the functionality of our platform.

6. AI Inputs and Outputs

When you use our AI video generation services, you provide:

• Text prompts: Descriptions, scripts, or instructions for video generation.
• Input images: Reference images uploaded for image-to-video generation.
• Reference videos: Video clips used as style or motion references.
• Generated videos: The AI-generated output videos.

6.1 Content Ownership

You retain ownership of the content you submit to our platform. Generated videos are owned by you, subject to our terms of service.

6.2 Model Training

We do not use your content to train foundation models by default. Your prompts, input images, reference videos, and generated outputs are not used to train or fine-tune our AI models without your explicit consent.

We may use aggregated, anonymized data from user interactions for research and model improvement purposes. This data does not contain personally identifiable information or content that could be traced back to individual users.

7. Data Sharing and Disclosure

We do not sell your personal information to third parties. We may share your information in the following circumstances:

7.1 Service Providers

• AI Providers: We send your generation requests to AI service providers (Evolink, Kie) for processing. These providers may receive your prompts, input images, and parameters.
• Payment Processors: Creem and Stripe process payments on our behalf.
• Storage Providers: Cloudflare R2 or similar services store your generated videos and media.
• Analytics Services: PostHog and similar services for usage analytics.

7.2 Legal and Safety

We may disclose your information if required to do so by law or to protect our rights, property, or safety, or that of our users or the public. This includes:

• Complying with legal obligations, court orders, or government requests
• Preventing, detecting, or responding to fraud, abuse, or security threats
• Protecting against legal claims or investigating violations of our terms
• Enforcing our policies and terms of service

7.3 Business Transfers

In the event of a merger, acquisition, or sale of assets, your information may be transferred to the acquiring entity. We will notify you of any such transfer.

8. International Data Transfers

DuckMath Classroom operates globally. Your information may be transferred to and processed in countries other than your own. We take appropriate measures to ensure your data is protected in accordance with this privacy policy.

When transferring data internationally, we rely on standard contractual clauses and other legally recognized mechanisms to provide adequate protection for your personal information.

9. Data Retention

We retain your information for different periods depending on its purpose:

9.1 Account Information

We retain your account information as long as your account is active. After account closure, we may retain certain information for legal, security, or business reasons.

9.2 Generated Media

Generated videos and media are stored as long as your account is active. After account deletion, generated media may be retained for up to 30 days for recovery purposes, fraud prevention, and dispute handling. After this period, the media is permanently deleted or anonymized.

9.3 Logs and Technical Records

System logs, error logs, and technical records are retained for up to 90 days for security monitoring, abuse prevention, and reliability purposes. After this period, they are automatically deleted unless longer retention is required for legal or security reasons.

10. Account Deletion

You may request deletion of your account at any time. Upon account deletion:

• Your profile information, credentials, and account data will be permanently deleted
• Your credit balance will be forfeited and cannot be refunded
• Your active subscriptions will be cancelled
• Generated media may be retained for up to 30 days for recovery and fraud prevention purposes

To request account deletion, please contact us at support@duckmath-classroom.com. We will process your request within 30 days.

11. Your Rights and Choices

Depending on your location, you may have the following rights regarding your personal information:

• Access: Request a copy of the personal information we hold about you.
• Correction: Request correction of inaccurate or incomplete information.
• Deletion: Request deletion of your personal information.
• Portability: Request transfer of your data to another service.
• Objection: Object to processing of your personal information.
• Restriction: Request restriction of how we use your information.
• Withdraw Consent: Withdraw consent for data processing where consent is the legal basis.

To exercise any of these rights, please contact us at support@duckmath-classroom.com.

12. Security

We implement reasonable security measures to protect your information, including:

• Encryption of data in transit and at rest
• Secure authentication and session management
• Regular security audits and vulnerability assessments
• Access controls and restricted data access
• Secure third-party payment processing (no full card data stored)

While we take reasonable steps to protect your information, no method of transmission or storage is completely secure. We cannot guarantee absolute security.

13. Children's Privacy

Our services are not intended for individuals under the age of 16. We do not knowingly collect personal information from children under 16. If we discover that we have collected such information, we will take steps to delete it promptly.

If you are a parent or guardian and believe your child has provided us with personal information, please contact us at support@duckmath-classroom.com.

14. Changes to This Policy

We may update this privacy policy from time to time. When we make changes, we will:

• Update the "Effective Date" at the top of this policy
• Notify users of significant changes via email or in-app notification
• Post the updated policy on our website

Continued use of our platform after changes constitutes acceptance of the updated policy.

15. Contact Us

If you have questions about this privacy policy or how we handle your personal information, please contact us: