Privacy Policy

Last updated: March 2026

Plume ("we", "us", or "our") operates the Plume platform. This Privacy Policy explains how we collect, use, and protect your information when you use our service.

Information We Collect

We collect the following types of information:

Account information: your name, email address, and hashed password when you sign up.
Usage data: the keywords, sub-keywords, and content you generate through the platform.
Payment information: billing is handled entirely by Stripe. We store your Stripe customer ID and subscription ID, but never your card details.
Technical data: IP addresses and request logs for security and rate-limiting purposes.

How We Use Your Information

To provide and operate the Plume platform.
To process payments and manage your subscription via Stripe.
To enforce usage limits and detect abuse.
To improve the service and fix issues.

Data Storage

Your account and content data is stored in a secure SQLite database. Generated DOCX files are stored temporarily in server memory and are not retained long-term. We use industry-standard security practices including password hashing and secure session cookies.

Third-Party Services

Stripe: handles all payment processing. Their privacy policy applies to payment data: stripe.com/privacy
Anthropic (Claude API): article content is sent to Anthropic's Claude API for AI processing. Anthropic's usage policies apply.

Data Retention

Your account and content data is retained for as long as your account is active. You may request deletion of your account and associated data by contacting us.

Your Rights

You have the right to access, correct, or delete your personal data. To exercise these rights, contact us at the email below.

Cookies

We use a single session cookie to keep you logged in. This cookie is HTTP-only, secure, and SameSite=Lax. We do not use tracking or advertising cookies.

Changes to This Policy

We may update this policy from time to time. Changes will be posted on this page with an updated date.

Contact

For privacy questions or data requests: privacy@contentflow.app