Privacy Policy
Last updated: April 23, 2026
1. Overview
ClearPen ("we", "us", "our") is committed to protecting your privacy. This policy explains what data we collect, how we use it, and your rights regarding your information.
2. Data We Collect
Account Data
- Email address (required for account creation)
- Name (optional, from sign-up provider)
- Authentication data managed by Clerk (our auth provider)
Billing Data
- Payment information is processed and stored by Stripe. We do not store credit card numbers, CVVs, or full payment details on our servers.
- We store your Stripe customer ID and subscription status for service delivery.
Usage Data
- Word counts and usage metrics per billing period
- Feature usage (strength settings, tone selections)
- Processing times and detection scores
Text Data
- Text you submit for humanization or detection is stored temporarily in our database for processing and to provide your request history.
- Text is sent to Anthropic (Claude API) for humanization and to GPTZero for AI detection scoring.
3. How We Use Your Data
- To provide and improve the ClearPen service
- To process payments and manage subscriptions
- To enforce usage limits per your plan
- To send transactional emails (receipts, account notifications)
- To generate anonymized, aggregated analytics for service improvement
4. Third-Party Services
We share data with the following providers as necessary:
- Clerk — Authentication and user management
- Stripe — Payment processing and subscription management
- Anthropic — Text processing via the Claude API (your text is sent for humanization)
- GPTZero — AI detection scoring (your text is sent for analysis)
- Vercel — Application hosting and infrastructure
- Neon — Database hosting
Each provider has their own privacy policy governing how they handle data. We encourage you to review their policies.
5. Data Retention
- Account data is retained as long as your account is active.
- Request history (submitted and processed text) is retained for 90 days, then automatically deleted.
- Usage metrics are retained for billing and analytics purposes.
- You may request deletion of your account and associated data at any time by contacting us.
6. Data Security
We use industry-standard security measures including encrypted connections (HTTPS/TLS), secure database hosting, and access controls. However, no system is 100% secure, and we cannot guarantee absolute security of your data.
7. Your Rights
You have the right to:
- Access your personal data
- Request correction of inaccurate data
- Request deletion of your data
- Export your data in a portable format
- Withdraw consent for data processing
8. Cookies
We use essential cookies for authentication and session management. We may use analytics cookies to understand how the Service is used. You can control cookies through your browser settings.
9. Children's Privacy
ClearPen is not intended for users under the age of 13. We do not knowingly collect data from children under 13.
10. Changes to This Policy
We may update this policy from time to time. We will notify users of significant changes via email or in-app notification.
11. Contact
For privacy-related questions or data requests, contact us at privacy@clearpen.ai.