Summary: We collect only what's necessary to provide the service. We don't sell your data. Your 3D models belong to you.
1. Who We Are
ModelLink 3D is operated by Altonuva LLC ("we," "us," or "our"). This Privacy Policy explains how we collect, use, and protect your information when you use our website and services at modellink3d.com.
2. Information We Collect
Information You Provide
| Data Type | Purpose |
|---|---|
| Email address | Account creation, login, notifications |
| Password | Account security (stored hashed, never plain text) |
| Display name / Username | Gallery URL, attribution |
| Payment information | Subscription billing (processed by Stripe) |
| 3D model files | Service delivery (hosting, viewing, sharing) |
| Project metadata | Category, description, display in galleries |
Information Collected Automatically
| Data Type | Purpose |
|---|---|
| IP address | Security, fraud prevention |
| Browser type | Compatibility, troubleshooting |
| Device information | AR/3D viewer optimization |
| Usage data | Service improvement, analytics |
3. How We Use Your Information
We use your information to:
- Provide and maintain the ModelLink 3D service
- Process your subscription and payments
- Send service-related communications (account verification, password resets, billing)
- Respond to support requests
- Improve our services and develop new features
- Detect and prevent fraud or abuse
We do not:
- Sell your personal information to third parties
- Use your 3D models for any purpose other than providing the service
- Share your data with advertisers
4. Your 3D Models and Content
You own your content. Uploading 3D models to ModelLink 3D does not transfer ownership to us. We only use your models to provide the hosting and viewing services you've requested.
Your models are:
- Stored securely on our servers
- Protected by signed URLs (time-limited access tokens)
- Accessible only via your share links and embeds
- Deleted within 30 days after subscription ends or upon your request
5. Third-Party Services
We use the following third-party services:
| Service | Purpose | Data Shared |
|---|---|---|
| Stripe | Payment processing | Payment details, email |
| GoDaddy | Web hosting | All uploaded content |
| SMTP provider | Email delivery | Email address, message content |
Each third-party service has its own privacy policy governing their use of your data.
6. Cookies
We use cookies for:
- Essential cookies: Login sessions, security tokens
- Preference cookies: Remembering your settings
We do not use advertising or tracking cookies. You can disable cookies in your browser settings, but this may affect your ability to use the service.
7. Data Retention
| Data Type | Retention Period |
|---|---|
| Account information | Until you delete your account |
| 3D models (active subscription) | Per your subscription tier retention policy |
| 3D models (expired/cancelled) | 30 days after expiration |
| Billing records | As required by law (typically 7 years) |
| Server logs | 90 days |
8. Your Rights
You have the right to:
- Access — Request a copy of your personal data
- Correction — Update or correct inaccurate information
- Deletion — Request deletion of your account and data
- Export — Download your 3D models and data
- Opt-out — Unsubscribe from non-essential communications
To exercise these rights, contact us at privacy@modellink3d.com.
9. European Users (GDPR)
If you are located in the European Economic Area (EEA), you have additional rights under the General Data Protection Regulation (GDPR):
- Legal basis: We process your data based on contractual necessity (to provide the service) and legitimate interest (to improve the service and prevent fraud).
- Data transfers: Your data may be transferred to and stored in the United States. We use standard contractual clauses to protect international transfers.
- Data Protection Authority: You have the right to lodge a complaint with your local supervisory authority.
10. Security
We protect your data with:
- HTTPS encryption for all connections
- Hashed passwords (never stored in plain text)
- Signed URLs for model file access
- Sensitive configuration stored outside web-accessible directories
- Regular security reviews
No system is 100% secure. If you discover a security vulnerability, please contact us at security@modellink3d.com.
11. Children's Privacy
ModelLink 3D is not intended for children under 13. We do not knowingly collect personal information from children under 13. If you believe we have collected such information, please contact us immediately.
12. Changes to This Policy
We may update this Privacy Policy from time to time. We will notify you of significant changes by posting a notice on our website or sending an email. Your continued use of the service after changes constitutes acceptance of the updated policy.
13. Contact Us
For privacy-related questions or requests:
- Email: privacy@modellink3d.com
- Website: modellink3d.com/info/support.html
Altonuva LLC
United States