Last Updated: December 29, 2024
1. Introduction
Welcome to ExcelFormula ("we," "our," or "us"). We are committed to protecting your privacy and ensuring you have a positive experience when using our AI-powered Excel formula generator service.
This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you visit our website https://excel-formula.net.
2. Information We Collect
2.1 Information You Provide
- Account Information: When you register using Google OAuth or email, we collect your email address and name.
- Formula Queries: The natural language descriptions you provide to generate Excel formulas.
- Feedback: Optional feedback and comments you provide about generated formulas.
2.2 Automatically Collected Information
- Usage Data: Information about how you interact with our service, including timestamps and usage patterns.
- IP Address: Your IP address for rate limiting and security purposes.
- Browser Information: Browser type, device information, and anonymous identifiers stored in localStorage.
3. How We Use Your Information
- To provide and maintain our Excel formula generation service
- To authenticate users and manage accounts
- To enforce usage limits (3 free trials for anonymous users, 30/month for registered users)
- To improve our AI models and service quality
- To respond to your feedback and support requests
- To prevent abuse and ensure service security
- To send important service-related notifications
4. Data Storage and Security
We use industry-standard security measures to protect your data:
- Data is stored securely using Supabase (PostgreSQL) with encryption at rest
- Authentication is handled via secure OAuth 2.0 protocols
- All communications are encrypted using HTTPS/TLS
- We implement rate limiting to prevent unauthorized access
- Access to user data is restricted to authorized personnel only
5. Third-Party Services
We use the following third-party services:
- Google OAuth: For user authentication (subject to Google's Privacy Policy)
- OpenRouter/Anthropic Claude: For AI-powered formula generation
- Supabase: For database and authentication services
- Vercel: For hosting and deployment
These services may collect and process data according to their own privacy policies. We do not share your personal information with third parties except as necessary to provide our service.
6. Data Retention
We retain your data for as long as your account is active or as needed to provide our services. You may request deletion of your account and associated data at any time by contacting us.
- Account data: Retained until account deletion
- Formula generation history: Retained for service improvement
- Anonymous usage data: May be retained for analytics purposes
7. Your Rights
You have the right to:
- Access the personal information we hold about you
- Request correction of inaccurate data
- Request deletion of your account and data
- Opt-out of promotional communications
- Export your data in a portable format
To exercise these rights, please contact us at hello@excel-formula.net
8. Cookies and Tracking
We use localStorage to store:
- Anonymous user identifiers for rate limiting
- Authentication tokens (when signed in)
- User preferences and settings
You can clear this data by clearing your browser's localStorage or using incognito/private mode.
9. Children's Privacy
Our service is not directed to children under the age of 13. We do not knowingly collect personal information from children. If you believe we have collected information from a child, 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 changes by posting the new policy on this page and updating the "Last Updated" date.
Continued use of our service after changes constitutes acceptance of the updated policy.
11. Contact Us
If you have any questions about this Privacy Policy, please contact us: