Privacy Policy
Last updated: January 8, 2026
1. Overview
DataViz Studio ("we," "our," or "us") operates the website datavizstudio.net. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our data visualization service.
2. Information We Collect
Account Information
When you create an account, we collect your email address and an encrypted password. We do not store plain-text passwords.
User-Uploaded Data
You may upload spreadsheet files containing your backtest data for visualization and analysis. This data is stored securely and is only accessible to you.
Automatically Collected Information
We automatically collect certain information when you visit our website, including:
- IP address
- Browser type and version
- Device information
- Pages visited and features used
- Date and time of access
3. How We Use Your Information
We use the information we collect to:
- Provide and maintain our data visualization service
- Authenticate your account and maintain security
- Process your uploaded files and generate charts and statistics
- Improve our service and user experience
- Communicate with you about your account or the service
- Process payments and manage subscriptions
4. Data Storage and Security
Your data is stored securely using industry-standard practices:
- Database hosted on Supabase (PostgreSQL) with encryption at rest
- Passwords are hashed using secure algorithms
- All data transmission uses HTTPS encryption
- Your uploaded data is private and only accessible to your account
- We implement access controls and regular security reviews
5. Data Retention
We retain your data according to your subscription tier:
- Free tier: Data retained for 3 months of inactivity
- Pro tier: Data retained for 24 months
When you delete your account, we will remove your personal data and uploaded files within 30 days. Some anonymized data may be retained for analytics purposes.
6. Third-Party Services
We use the following third-party services to operate DataViz Studio:
- Supabase: Database hosting and authentication
- Lemon Squeezy: Payment processing and subscription management
- DigitalOcean: Application hosting
These services have their own privacy policies governing their use of your data.
7. Your Rights
You have the right to:
- Access the personal data we hold about you
- Export your uploaded data
- Request correction of inaccurate data
- Delete your account and associated data
- Opt out of non-essential communications
To exercise these rights, please contact us at support@datavizstudio.net.
8. Cookies
We use only essential cookies required for the service to function:
- Authentication cookies to keep you logged in
- Session cookies to maintain your preferences
We do not use advertising or tracking cookies.
9. Children's Privacy
DataViz Studio is not intended for users under 18 years of age. We do not knowingly collect personal information from children. If you believe a child has provided us with personal information, please contact us immediately.
10. Changes to This Policy
We may update this Privacy Policy from time to time. We will notify you of any significant changes by posting the new policy on this page and updating the "Last updated" date. Your continued use of the service after changes constitutes acceptance of the updated policy.
11. Contact Us
If you have any questions about this Privacy Policy, please contact us at: