Privacy policy.

• —Account information: your email address, and the display name and username you choose.
• —Learning activity: lessons you complete, quiz scores, streaks, and experience points (XP).
• —Classroom information: if you join a class, your membership in that class and its assignments.
• —Newsletter: if you subscribe, your email address (handled by our newsletter provider).
• —Usage and device data: basic analytics about how the Service is used and standard technical session information.

We do not ask for or store passwords — we sign you in with one-time email links.

• —To provide and operate the Service, including tracking your learning progress.
• —To show educators the progress and quiz scores of students in their own classes.
• —To send you the newsletter and necessary transactional emails (like sign-in links).
• —To understand and improve the Service.

We do not sell your personal information. We do not use student data for advertising or to build advertising profiles.

If you join a class with a code, the educator who owns that class can see your display name, username, the lessons you’ve completed, and your quiz scores for that class. They cannot see your email sign-in, your activity outside their class, or any other account data. See our Student Data & FERPA page for how we handle data in an educational setting.

We share information only with vendors who help us run the Service, and only as needed:

• —Supabase — database and authentication
• —Vercel — application hosting
• —Sanity — lesson content management
• —Beehiiv — newsletter delivery
• —Resend — transactional email
• —PostHog — product analytics
• —Cloudflare — DNS and security

These providers are bound to protect your information and use it only to provide their service to us.

The Service is intended for users 13 and older, with a focus on high-school and older students. We do not knowingly collect personal information from children under 13. If you believe a child under 13 has provided us information, contact us and we will delete it.

• —Access and update: edit your display name and username anytime in Settings.
• —Delete: email privacy@thedailycapital.co to request deletion of your account and associated data.
• —Newsletter: unsubscribe anytime via the link in any issue.

We keep your information for as long as your account is active or as needed to provide the Service. We delete or anonymize it on request, subject to legal obligations.

We use reputable infrastructure providers and passwordless sign-in to protect your data. No method of transmission or storage is perfectly secure, but we work to safeguard your information.

We may update this policy. We’ll change the “last updated” date and, for material changes, take reasonable steps to notify you.

Questions? Email privacy@thedailycapital.co.