This Privacy Policy describes how Yihook, operated by Perry Huang from Hong Kong SAR ("Yihook", "we", "us"), collects and uses your personal data. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our platform at https://yihook.ai and https://app.yihook.ai (the "Service").
Please read this Privacy Policy carefully. By using the Service, you consent to the practices described in this policy.
1. Information We Collect
1.1 Information You Provide
- Account Information: Name, email address, and password when you register
- Payment Information: Payment is processed by Stripe. We do not store your full card details. We receive transaction confirmations and billing details (last 4 digits, card type, billing country) from Stripe
- Content Inputs: Product images, text prompts, product descriptions, and other materials you upload to generate content
- Communications: Messages you send to our support team
1.2 Information Collected Automatically
- Usage Data: Pages visited, features used, generation history, credit consumption, and session duration
- Device and Technical Data: IP address, browser type and version, operating system, device identifiers
- Cookies and Similar Technologies: We use cookies and local storage to maintain your session, remember preferences (language, theme), and improve the Service
1.3 Information from Third Parties
- Google OAuth: If you sign in with Google, we receive your email address and profile name from Google
- Stripe: Transaction status and anonymized payment metadata
2. How We Use Your Information
We use the information we collect to:
- Provide, maintain, and improve the Service
- Process your payments and manage your credit balance
- Generate AI content based on your inputs
- Send transactional emails (account confirmation, payment receipts, password reset)
- Respond to your customer support requests
- Monitor and analyze usage patterns to improve product features
- Detect, prevent, and address fraud, abuse, and security issues
- Comply with legal obligations
- Send product update notifications (you may opt out at any time)
We do not sell your personal information to third parties.
3. How We Share Your Information
We may share your information with:
3.1 Service Providers
We share data with trusted third-party vendors who assist us in operating the Service, including:
- Stripe — payment processing
- Google — authentication services (Google OAuth)
- Cloud infrastructure providers — hosting, file storage, and content delivery
- AI model providers — AI processing for video and image generation
These providers are contractually obligated to use your data only to provide services to us and in accordance with applicable data protection laws. You may contact us at support@yihook.ai to request a current list of specific sub-processors.
3.2 Legal Requirements
We may disclose your information if required by law, court order, or government authority, or if we believe disclosure is necessary to protect our rights, your safety, or the safety of others.
3.3 Business Transfers
If Yihook is involved in a merger, acquisition, or sale of assets, your information may be transferred as part of that transaction. We will notify you before your data is subject to a different privacy policy.
4. Content You Generate
Content inputs (images, prompts) you submit are processed by our AI infrastructure to generate outputs. We may retain input and output data to provide the Service, troubleshoot issues, and improve our systems. We do not use your private content inputs to train AI models offered to other users without your explicit consent.
Generated outputs are stored in your asset library and associated with your account. You may delete your generated content at any time through the platform.
5. Data Retention
We retain your personal information for as long as your account is active or as needed to provide the Service. You may request deletion of your account and associated data by contacting support@yihook.ai. We will delete your data within 30 days of a verified deletion request, except where we are required to retain it for legal or compliance purposes.
Payment transaction records may be retained for up to 7 years to comply with financial record-keeping requirements.
6. Data Security
We implement industry-standard security measures to protect your information, including:
- Encrypted data transmission (HTTPS/TLS)
- Secure cloud storage with access controls
- JWT-based authentication with short-lived access tokens
- Password hashing
However, no method of transmission over the Internet is 100% secure. We cannot guarantee absolute security and are not liable for unauthorized access beyond our reasonable control.
7. Cookies
We use the following types of cookies and local storage:
| Type | Purpose |
|---|---|
| Essential | Session management, authentication tokens |
| Functional | Language preference, theme (dark/light mode), draft content |
| Analytics | Anonymous usage statistics to improve the Service |
You may disable non-essential cookies through your browser settings, but this may affect certain features of the Service.
8. Your Rights
Depending on your location, you may have the following rights regarding your personal data:
- Access: Request a copy of the personal data we hold about you
- Correction: Request correction of inaccurate or incomplete data
- Deletion: Request deletion of your personal data
- Portability: Request your data in a portable format
- Objection: Object to certain processing of your data
- Withdrawal of Consent: Withdraw consent where processing is based on consent
To exercise any of these rights, please contact us at support@yihook.ai. We will respond within 30 days.
9. International Data Transfers
We operate globally. Your information may be transferred to and processed in countries other than your country of residence, including Hong Kong SAR, China (Mainland), and the United States. These countries may have different data protection laws than your jurisdiction.
The data controller responsible for your personal data is Perry Huang, based in Hong Kong SAR.
We take appropriate safeguards to ensure your data is protected in accordance with this Privacy Policy wherever it is processed.
10. Children's Privacy
The Service is not directed to individuals under the age of 18. We do not knowingly collect personal information from minors. If we become aware that a minor has provided personal information, we will delete it promptly. If you believe a minor has provided us information, please contact support@yihook.ai.
11. Third-Party Links and Platforms
The Service may contain links to third-party websites or integrate with third-party platforms (such as TikTok). This Privacy Policy does not apply to those third parties. We encourage you to review the privacy policies of any third-party services you use.
12. Changes to This Privacy Policy
We may update this Privacy Policy from time to time. We will notify you of material changes by posting the new policy on this page and updating the "Last Updated" date. For significant changes, we will also send an email notification to registered users.
13. Governing Law
This Privacy Policy is governed by the laws of the Hong Kong Special Administrative Region. Any disputes relating to this Privacy Policy shall be subject to the exclusive jurisdiction of the competent courts of the Hong Kong SAR.
14. Contact Us
If you have any questions, concerns, or requests regarding this Privacy Policy, please contact us at support@yihook.ai.